Reference:8171

Rolex 8171 'Padellone' in 18K yellow gold — triple-calendar with day/month apertures, moonphase at 6, and Officially Certified Chronometer dial (Christie's Geneva 2022)

Padellone → 8171

The 8171 is the complication flagship. Launched around 1949 and produced for roughly three years, it is, with its Oyster-cased sibling the 6062, one of only two triple calendar moonphase references Rolex ever put into series production. Day, date, month, and moonphase, in a 38mm round case at a moment when dress watches were 32mm or smaller. Automatic caliber A.295 with a complete calendar module, the same A.295 platform that powers the Ovettone Datejust underneath the added complication. Non-Oyster, snap-on caseback, non-waterproof. The one thing Rolex would not compromise on its sport references was exactly what it gave up to build a dress complication. Italian collectors named the watch Padellone: big pan. Padella is Italian for frying pan; -one is the augmentative. The nickname reads as tongue-in-cheek affection for a case whose diameter stood out so far from its contemporaries that "big pan" was the first and most obvious thing to say about it. The reference is now the most expensive non-chronograph vintage Rolex outside the Daytona lineage and one of the most expensive Rolex watches ever sold at auction.

Core facts

detail	value
reference	8171
nickname	Padellone (Italian: "big pan")
family	Padellone / triple calendar moonphase
production	c. 1949 – c. 1952/1953
total production	approximately 1,000–1,200 units (collector estimate)
case diameter	38mm
case construction	two-piece, snap-on caseback (non-Oyster)
water resistance	none — non-Oyster case
case materials	18K yellow gold (most common); 18K pink gold (rare); stainless steel (very rare)
movement	Cal. A.295 CPL (automatic, in-house Aegler)
complications	day, month (apertures at 12); date (peripheral pointer); moonphase (aperture at 6)
crystal	acrylic, domed
dial signature	"Rolex Oyster Perpetual" + "Officially Certified Chronometer" or "Precision"
bracelet	leather strap, period Rolex buckle
italian nickname	Padellone — parallel to Ovetto/Ovettone diminutive-augmentative pattern

What the 8171 is

By the end of the 1940s, Rolex had a working Oyster case, a working Perpetual rotor, a working chronometer programme, and a working date complication (the 4467, launched 1945). What it did not have was a showpiece complication to sit at the top of its catalogue, a watch that did more than tell the time with a date window. Patek Philippe, Vacheron Constantin, and Audemars Piguet were producing triple calendar moonphases in series. Rolex answered with two references designed in parallel around the same complication set: the 6062, Oyster-cased and with a screw-down back, and the 8171, non-Oyster and dressier. Both carry an automatic A.295 caliber fitted with a complete-calendar-and-moonphase module. Both shipped in 18K gold as standard with very limited stainless steel production. Together, and only together, they constitute the triple calendar moonphase chapter of Rolex's history. Neither reference was replaced. After the mid-1950s, Rolex ceased producing complicated calendar watches of this type and never returned to them.

Within that pair, the 8171 is the non-Oyster. Snap-on caseback in place of the screw-down Oyster construction. No crown tube seal. A dress crown rather than the Oyster's screw-down brevet. The watch dials still read "Oyster Perpetual" beneath the coronet, but that text is a model-line signature line, not a case-construction statement. The case itself is not an Oyster and was never waterproof. For a reference designed around a complication that needs to be set with a paperclip-style pusher pressed into a recessed port on the caseband, the non-Oyster construction was a deliberate choice. The Oyster-case 6062 handled the same problem with a screw-down back that was periodically opened and resealed. The 8171 simply went dress-watch.

Padella and Padellone

Padella is the Italian word for frying pan. -one is the Italian augmentative suffix; applied to a noun, it produces a bigger version. Padellone is "big pan." Italian collectors used the nickname as the reference circulated through the Italian auction and dealer market from the 1980s onward, and it stuck.

The naming follows the same diminutive-augmentative pattern as the Bubbleback-era Ovetto/Ovettone distinction. Ovetto (little egg) is the 32mm Bubbleback. Ovettone (big egg) is the 36mm Big Bubbleback, including the 4467. For the 8171, the augmentative -one operates on padella directly. The 38mm case was, for a 1950s dress watch, conspicuously large. A period-correct dress watch of 1950 was 32–34mm, often 30mm. A 38mm dial sat on the wrist like a flat, wide plate, hence a big pan.

The nickname is now the common collector-market term for the reference. Auction houses (Phillips, Sotheby's, Christie's, Bonhams, Antiquorum) all use "Padellone" in lot titles. Italian origin, universal adoption.

The 38mm case

At 38mm, the 8171 was approximately 4–6mm larger than its dress-watch contemporaries and roughly 2mm larger than the 6062. The case is round with tapered, fluted lugs and a smooth stepped bezel. No decorative fluting, no engine-turning, no anniversary flourish. The visual weight lives in the diameter and in the dial: eight pieces of information (hour, minute, second, day, month, date, moonphase, moon age indicator) sit inside the chapter ring, arranged around apertures at 12 and 6 and a peripheral date track read by a central blued-steel pointer.

Case construction is two-piece: mid-case and snap-on caseback. The caseback snaps into the mid-case with a friction fit and is opened with a caseback knife rather than a threaded spanner. This is standard watchmaking practice for dress watches of the period, and it is the opposite of the Oyster approach. The 8171's caseback carries a serial number and the Rolex coronet but no depth rating, no "Oyster" engraving, and no model-line marking.

Three recessed pushers on the caseband correct the day, month, and moon indications. Date advances with the hour hand through the 24-hour cycle, without quickset, consistent with the A.295 generation. The crown is a small dress-style pushpiece rather than the screw-down brevet crown used on the Oyster cases. Opening and closing the 8171 for service is quick compared to an Oyster, but the trade-off is well documented: snap-on backs lose seal tolerance through repeated service cycles, and many 8171 dials today show moisture-driven patina variability as a direct consequence.

Materials: yellow gold, pink gold, steel

The 8171 was produced in 18K yellow gold, 18K pink gold, and stainless steel. Yellow gold dominates the documented population. The majority of auction lots, dealer listings, and published examples are 18K yellow gold. Pink gold is substantially rarer; collectors estimate the pink gold population at a small fraction of yellow. Steel is the unicorn.

Dealer consensus places steel production at approximately 800 pieces out of the estimated 1,000–1,200 total. That figure appears in SJX's "Rolex Unicorns Part II" treatment of the steel 8171 and in several dealer summaries. The survivor count at auction runs far below that estimate. Steel 8171s appear rarely at public sale, and when they do the results are the highest the reference produces. The mismatch between the estimated steel production number and the observed auction frequency is one of the reference's open questions.

Why steel at all on a dress complication is not documented. Rolex's own mid-century catalog presentation of the 8171 framed it as a precious-metal piece. Steel examples exist, are period-correct, and carry conventional 8171 movement, dial, and caseback markings, but the reference was not designed around a steel variant, and no contemporary Rolex literature promotes steel as an option. The result is that steel Padellones are, within the 8171 population, the most sought-after configuration. Material incongruity with the dress brief, extreme rarity at public auction, and a different aesthetic on the wrist (greyer, colder, more modern than the gold variants) combine. Every seven-figure 8171 result has been a steel example.

The dial

Dial text follows the Rolex convention of the period. Coronet at 12, "Rolex" beneath, then "Oyster Perpetual" on two lines. Below 6, above the moonphase aperture, either "Officially Certified Chronometer" or "Precision"; both are correct, both appear on documented examples, and the two configurations do not track cleanly to case material or production year. Day and month are printed in small apertures flanking the 12 position. The date runs around the dial periphery as a printed track, read by a central blued-steel pointer hand. The moonphase aperture at 6 shows the waxing and waning crescent across a starfield, with the moon disc rotating through the lunar cycle.

Most 8171 dials are silvered with applied gilt baton hour markers. The outer minute track is printed black. The outer calendar track, the ring of date numbers 1 through 31 around the edge, is printed blue on silvered dials, producing the two-tone graphic read common to the reference.

Variations are documented. A grain-finished silvered dial is rare, with a subtler, almost matte texture, closer to a true metallic silver than the more common sunburst finishes. Salmon dials, a warm pinkish-orange treatment, are very rare and have surfaced on a small number of examples at auction. Black dials are also very rare and have appeared on yellow gold cases at public auction. A two-tone configuration, silvered center with a contrasting outer calendar ring, is the configuration that carried the Phillips May 2019 lot to CHF 980,000. Radium-lume variants exist, with luminous plots at the hour markers and luminous-filled hands, alongside non-luminous variants that use applied markers without lume and either feuille (leaf) or dauphine hands.

Hand configurations vary with the dial. Most 8171 dials carry gold dauphine hands on gold cases; feuille hands appear on certain configurations. The central seconds hand is typically a simple baton; the date pointer is blued steel with a fine arrow tip that reaches the periphery.

Movement: A.295 CPL

The 8171 uses caliber A.295 CPL, the same A.295 platform (10.5 lignes, 18 jewels, rhodium-plated, self-winding with a unidirectional perpetual rotor, straight-line lever escapement, Breguet balance spring) used in the 4467 Ovettone, with the addition of a complete-calendar-plus-moonphase module. "CPL" is the complication suffix. The movement is chronometer-certified, and dials are marked accordingly.

The caliber matters for two reasons. First, it establishes the 8171 as mechanically continuous with the Big Bubbleback Ovettone programme: the same movement architecture, with a complication module, in a different case. The 4467, 8171, and 6062 share a movement platform across three case formats: Big Bubbleback Datejust, non-Oyster complication dress, Oyster complication dress. Second, it resolves a recurring misattribution. The Rolex Datocompax references of the same era (4767, 5036, 6036, 6236) are chronograph-plus-calendar watches and use the Valjoux 72C ébauche with Rolex finishing. The 8171 is not a Datocompax, is not Valjoux-based, and does not carry a chronograph. Published sources occasionally conflate the two programmes; the A.295 CPL attribution is the consistent one across dedicated Rolex sources (SJX, Le Monde Edmond, Hairspring, Phillips catalog notes).

No quickset. Date changes with the hour hand, advanced through a 24-hour cycle. Day, month, and moon are corrected by recessed caseband pushers, pressed with a paperclip or a dedicated tool. The mechanism is robust in period service but, as with any complete-calendar movement of the era, uses a period of a few hours around midnight during which correction should not be performed; pushing against an engaging change mechanism will damage the teeth.

The 6062 and the complication pair

The 8171's sister reference is the 6062, the Oyster-cased version of the same complication set, produced concurrently in 18K yellow gold, 18K pink gold, and stainless steel. Same A.295 CPL movement, same day-month-date-moonphase complication set, same general dial architecture. The differences are case construction and case size. The 6062 is an Oyster: 36mm, screw-down caseback, screw-down crown, waterproof. The 8171 is non-Oyster: 38mm, snap-on caseback, dress crown, non-waterproof.

Within Rolex history, the 6062 and 8171 are treated as a pair. Collector vocabulary uses both names without hierarchy. Auction catalogs cross-reference: Phillips, Sotheby's, Christie's, and Bonhams all describe the 8171 and the 6062 in each other's terms when one surfaces. The 6062 produced the Bao Dai result: Phillips Geneva May 2017, CHF 5,066,000, the black dial diamond-marker example commissioned by the last Vietnamese emperor. That lot is not an 8171 lot, but it is the apex of the complication pair's market history and sits on a watch that is mechanically identical to the 8171 beneath the Oyster case.

The distinction between them is aesthetic and philosophical. The 6062 is Rolex's attempt to put a full complication set inside an Oyster and preserve the firm's waterproof identity. The 8171 is Rolex's attempt to put the same complication set inside a dress watch and accept the dress-watch constraints: non-Oyster, larger diameter, dressier lines. Neither reference was produced in large numbers. Neither was continued after the mid-1950s. The line of reasoning that produced both, Rolex competing in the complication segment on complication terms rather than waterproofing terms, did not survive the turn toward sport-watch specialization that defined the firm's second half-century.

Auction record

The 8171's public auction history is dominated by four or five landmark results, with a deeper tier of yellow gold standard-configuration sales establishing the reference's baseline.

Venue	Date	Lot	Material	Configuration	Result
Christie's New York Important Watches ("Sleeping Beauty")	Dec 2002	—	stainless steel	triple calendar moonphase	USD 1,145,000 (est. 250,000–350,000)
Phillips Geneva Watch Auction Nine	May 2019	68	18K YG	two-tone dial, original hang tag and box	CHF 980,000
Phillips Geneva Watch Auction Ten	Nov 2019	175	stainless steel	exceptional preservation	CHF 1,028,000
Sotheby's Important Watches Part I	2023	—	18K YG	circa 1950	— (standard-tier result)
Sotheby's Important Watches	Dec 2024	—	—	—	USD 203,200
Phillips Bacs & Russo	Dec 2024	—	—	—	USD 100,205

The Christie's December 2002 "Sleeping Beauty" sale is the historically important result. Estimated at USD 250,000–350,000, the watch sold for USD 1,145,000 after a multi-country bidding contest, setting at the time a world auction record for a Rolex wristwatch. The "Sleeping Beauty" nickname attached at the moment of sale, a play on the price surprise and on the watch itself, a stainless steel 8171 that had been quiet in the market until that night. The sale restructured collector perception of the 8171 and of complicated Rolex in general; in 2002, seven figures for a non-chronograph Rolex was without precedent.

Phillips Geneva's 2019 pair is the modern benchmark. May 2019 Lot 68, an 18K yellow gold 8171 with a two-tone dial, accompanied by original numbered hang tag and presentation box, sold for CHF 980,000, the public benchmark for top-condition yellow gold Padellone with documented provenance. November 2019 Lot 175, a stainless steel example described in the Phillips catalog as representing "the benchmark in terms of condition, factory finish and aesthetics" for the steel reference, sold for CHF 1,028,000. Two consecutive Phillips cycles, two near-equivalent seven-figure results, one yellow gold and one steel. That pairing is the clearest single marker of where the reference sits in the market.

Standard yellow gold 8171 results run well below these landmarks. The 2024 cycle produced results in the USD 100,000–200,000 range for mid-tier examples. Condition, preservation of factory finishes, originality of dial, presence of original paperwork and packaging, and material (gold versus steel) all move the result meaningfully within the tier. Dealer asking prices for yellow gold 8171s typically run USD 120,000–300,000+ depending on configuration; steel examples rarely surface at retail at all.

The market tier structure for the 8171 is clear in outline: steel at the apex (seven-figure ceiling, mid-six-figure baseline); pink gold as a scarcity-premium tier above standard yellow gold; yellow gold as the volume tier, itself heavily stratified by dial, provenance, and preservation.

What the 8171 established, and did not

The 8171 did not found a line. No 8171 successor reference exists. Rolex did not continue the complete-calendar-moonphase programme past the 1950s, did not reissue a 38mm non-Oyster dress complication, and has not revisited the moonphase as a series production complication in any wristwatch reference since. The 8171 and the 6062 are a closed chapter.

What the 8171 did establish was that Rolex could, when it chose to, produce a complete-calendar-plus-moonphase complication at the same level of finish and chronometer certification as its three-hand watches. The A.295 CPL movement was not an outsourced module in the Datocompax sense; it was an in-house Aegler platform with an added complication. The 8171 and 6062 demonstrated, briefly, what a complicated Rolex could look like. The firm's subsequent decision to orient around sport-watch specialization (Submariner, GMT-Master, Day-Date, Daytona) relegated that demonstration to a single reference pair and closed the door on a path the 8171 had opened.

The market recognized the closure retroactively. Through the 1970s and 1980s, 8171s traded quietly. Through the 1990s, collector attention grew. The 2002 Christie's "Sleeping Beauty" sale marked the moment the reference became an apex collector artifact. The 2017 Bao Dai 6062 result at CHF 5M extended that status to the pair. By the late 2010s, Phillips Geneva auctions had established both the yellow gold benchmark (CHF 980,000) and the steel benchmark (CHF 1,028,000) for the 8171 in isolation.

Related references

The 6062 is the Oyster-cased sibling: same A.295 CPL movement, same complication set, 36mm screw-down Oyster case, produced concurrently in yellow gold, pink gold, and stainless steel. The Bao Dai 6062 (Phillips May 2017, CHF 5,066,000) is the highest public result for the complication pair.

The Rolex Datocompax chronographs (4767, 5036, 6036, 6236) are chronograph-plus-calendar references of the same era, using the Valjoux 72C ébauche with Rolex finishing. They are not mechanically related to the 8171 (different base caliber, chronograph function), but they occupy the same complication-flagship segment Rolex addressed in the late 1940s and early 1950s. The 6236, produced from 1958, is known as the "Jean-Claude Killy" after the skier's ownership of one.

The 4467 is the Big Bubbleback Ovettone. It shares the A.295 movement platform without the CPL complication module. The 4467 and the 8171 are the two most prominent A.295-family dress references, one with a date, one with a full calendar and moonphase. Naming follows the same Italian augmentative pattern: Ovettone (big egg), Padellone (big pan).

The 6305 is the first Datejust with a Cyclops (1954): Oyster-cased, single date complication, Cal. 1030. It is the Oyster-cased continuation of the dress-with-date programme, while the 8171 and 6062 are the non-continuation of the dress-with-full-calendar programme.

Collecting considerations

For collectors, the 8171 occupies a narrow but well-defined position: a bona fide rarity in absolute terms, the complication flagship of the Bubbleback-era Rolex, and a reference whose market has been established at auction for more than two decades with a clear tier structure.

The configuration hierarchy runs from steel at the apex to standard yellow gold at the base. A stainless steel example with original dial, hands, case finish, and paperwork sits at the top, the Phillips November 2019 Lot 175 tier. An 18K pink gold example with original dial and paperwork carries a scarcity premium over yellow gold but falls below steel. An 18K yellow gold example with a rare dial (salmon, black, or two-tone) plus box and paperwork is the Phillips May 2019 Lot 68 tier. Below that sits the yellow gold standard-silvered-dial example with box and paperwork, and below that the same without paperwork.

Authentication priorities cluster around six questions. Case material is first: all three documented materials (yellow gold, pink gold, steel) exist in period, and material substitution, a steel case purporting to be period-correct on a movement and dial from a gold example or vice versa, is the most consequential authentication question. Movement serial, case serial, and caseback markings should reconcile. Movement is second: caliber A.295 CPL across the production run, so claimed Valjoux or other-base-caliber 8171 watches are not period-correct. Dial is third: refinishing reduces value meaningfully, and original dials show period-consistent lume patina (where luminous), period-correct printing, and original applied markers. Two-tone and rare-color dials (salmon, black) are the most sensitive to refinish; a refinished rare-dial 8171 is materially compromised relative to a refinished standard silvered example. Case preservation is fourth: snap-on casebacks tolerate repeated opening poorly, and heavy polish or case-edge softening from multiple service cycles is common and reduces value. Unpolished examples with original lug geometry are the benchmark. Complication function is fifth: day, month, and moonphase corrections should operate via the caseband pushers without resistance, and period-correct parts for the A.295 CPL module are not readily available. Paperwork and accessories are sixth: original Rolex box, numbered hang tag, instruction booklet, and sales receipt command substantial premiums. The Phillips May 2019 CHF 980,000 result was explicitly anchored by original box and numbered hang tag.

Period-correct leather straps and Rolex buckles in matching metal appear on the strongest auction examples. A gold 8171 on a service strap with a non-Rolex buckle is a routine presentation; a gold 8171 on a period Rolex strap with a matching gold buckle is not.

Still open

Several questions about the 8171 remain unresolved.

Exact production totals by material. The ~1,000–1,200 total is a collector estimate; the ~800 steel figure appears in dealer and collector summaries (SJX, Amsterdam Vintage Watches) but is not supported by a published Rolex figure. The ratio of steel survivors at public auction suggests either a smaller true steel population, heavy attrition, or concentrated private holdings that do not reach the market.

The steel production rationale. Why Rolex produced any 8171 examples in stainless steel is not documented in period literature. The reference was designed and marketed as a precious-metal complication; the steel subset sits outside that brief. Possibilities include small runs for specific markets, dealer-specific commissions, or sub-series production whose rationale was never published. None is confirmed.

End year. Published sources variously cite 1952 or 1953 as the end of production. The distinction likely reflects end-of-run stock sales rather than a factory-dated cutoff. A dated Rolex production ledger for the 8171 has not been made public.

Dial configuration taxonomy. The documented dial variants (standard silvered, grain-finished silvered, salmon, black, two-tone, with and without luminous plots) have not been ordered into a strict production sequence. Configurations appear to have been produced in parallel, with overlap across the production run. The question of which dial configurations pair definitively with which case serial ranges remains unresolved.

Movement finishing variants. The A.295 CPL across the 8171 production run shows some variation in movement finishing (plating, rotor decoration, bridge engraving) that has not been systematically documented. Whether the variation reflects service intervention, production evolution, or distinct batches is not established.

Sources