Rolex 3133 Oyster Perpetual Bubbleback

A checked version of this page, approved on 15 August 2026, was based on this revision.

The 3133 is a 32mm Oyster Perpetual Bubbleback, documented across three separate Antiquorum auction lots plus a forum owner who dates his example to 1938 — a year earlier than any of the catalogued examples. All three auctioned watches pair pink gold with stainless steel, but in three different splits: solid pink gold body with a steel bezel band on one, a steel case with a pink gold bezel on another, and a mixed steel-and-pink-gold construction on the third. None of the three carries the same case number, and no two share a sale.

The reference is a small case study in what originality does to a Bubbleback's value — see the Auction record below.

Core facts

detail	value
reference	3133
family	Oyster Perpetual (Bubbleback)
common name	"Bubbleback"
production	documented examples span 1938 (forum-dated) to circa 1947 (Antiquorum-dated); no confirmed start/end year for the reference as a whole
case	32mm, pink gold and stainless steel in varying splits — documented as solid pink gold with steel bezel, steel case with pink gold bezel, and mixed steel-and-pink-gold
movement	self-winding, caliber sized 9¾ lignes (Antiquorum's caliber field on two of the three lots), one lot specifying 19 jewels
dial (documented)	black gilt (original); silvered/unspecified with center seconds (dial reprinted on one example, original on two)
seconds hand	both configurations documented — small seconds at 6 o'clock on one example, center seconds on another
crown	screw-down, Oyster waterproofness; crown tube diameter varies by case-part generation (5.3mm or 4mm), per forum restoration discussion — verify before ordering a replacement part
documented examples	three Antiquorum lots (case nos. 49184, 488378, and a third unlisted) plus a forum-dated 1938 example (case unspecified)

Where it sits in the line

"Bubbleback" is a collector nickname, never an official Rolex designation, for the family of Oyster Perpetual references built from 1933 through the mid-1950s around the domed caseback needed to clear the early automatic winding rotor. Rolex moved from the original three-piece Bubbleback case to a simpler two-piece design in 1936 with references 3131 and 3132; the 3133 sits in that same numeric cluster and shares its 32mm case diameter and general construction with both.

Where the 3133 stands out from a bare reference list is in how much genuine variety three small auction lots already show. Rolex offered the same reference in at least three different pink-gold-to-steel ratios, with both small-seconds and center-seconds dial layouts documented on watches sharing the same reference number — evidence that "reference 3133" described a case and movement platform Rolex dressed multiple ways, not a single fixed configuration, consistent with Anthony Traina's framing of the Bubbleback family for Hodinkee as "nearly impossible to catalog comprehensively" even for specialists who have tried.

Production outline

The earliest documented date comes from a forum member restoring his own 3133, who dates the watch to 1938 based on his case research — a year earlier than any of the three Antiquorum lots, which are dated "circa 1940s" and, on the most precisely dated example, "circa 1947." Taken together, the four documented examples place the 3133 across roughly a decade of production, from the late 1930s into the postwar years, consistent with the reference sitting inside Rolex's broader two-piece-case Bubbleback generation that ran from 1936 onward.

No two of the three auctioned examples share a case number (49184, 488378, and a third the cataloguer left unlisted), and no source located here gives a total production count or a firm end date specific to the 3133.

Movement notes

Two of the three Antiquorum lots list the movement as caliber sized "9¾" lignes — a movement-diameter class Rolex used across several different Bubbleback-era automatic calibers rather than a single specific caliber number, so "9¾ ligne" identifies the size of movement fitted, not a unique caliber identity shared with every other 9¾-ligne Bubbleback. One lot specifies 19 jewels. All three documented examples are self-winding with the era's water-resistant Oyster construction: screw-down crown and caseback.

A forum thread on restoring a 1938-dated 3133 flags a practical point for anyone servicing one of these: crown tube diameter varies across Bubbleback case-part generations, either 5.3mm or 4mm depending on the specific case variant, along with differing thread pitch — a detail worth checking case-by-case rather than assuming parts interchange across the wider Bubbleback range.

Dial map

Documented configurations split on seconds-hand layout as much as on color. One example carries a black gilt dial with small seconds at 6 o'clock. A second carries an unspecified dial with center seconds — a functional layout, not just a cosmetic variant, since it changes what the subsidiary dial train looks like on the movement side. A third example, mechanically identical to the others, carries a dial the Antiquorum condition report explicitly notes as "reprinted," with hands whose luminous material has been reapplied — a service refinish rather than an original surface, and the reason that example sold for a fraction of the other two.

Case, bezel, crystal, and crown

32mm across all three documented examples. The pink-gold-to-steel construction varies: one lot describes the case itself as "18K pink gold and stainless steel," a second specifies a pink gold bezel on a stainless steel case, and a third describes the case generally as "steel and pink gold" without further detail — three watches, three ways of splitting the same two metals across the same case architecture. Screw-down crown and caseback throughout, consistent with the Oyster line's water-resistant construction.

Auction record

Sale	Lot	Case no.	Configuration	Estimate	Result
Antiquorum, Hong Kong, 31 May 2026	46	49184	18K pink gold and stainless steel, black gilt dial, original, circa 1947	HKD 30,000–60,000	HKD 50,000 (≈ USD 6,400)
Antiquorum, Hong Kong, 2025	301	not listed	Steel and pink gold, small seconds at 6, original dial, circa 1940s	HKD 28,000–50,000	HKD 37,500 (≈ USD 4,800)
Antiquorum, Geneva, 10–11 May 2025	160	488378	Pink gold bezel, stainless steel case, center seconds, dial reprinted and hands relumed, circa 1940s	CHF 1,000–2,000	CHF 1,625 (≈ USD 1,850)

The three results track condition and originality closely: the two original-dial examples sold for USD 4,800–6,400, while the mechanically identical example with a reprinted dial and relumed hands sold for roughly a third of that. Same reference, same era, same case-metal split — the gap is entirely about whether the dial in front of a buyer is the one Rolex applied.

Related references

Bubbleback 3131 — same two-piece case generation, introduced 1936
Bubbleback 3132 — same two-piece case generation, introduced 1936
Bubbleback 3696 — same era, mixed pink gold and steel construction
Bubbleback 1858 — first Bubbleback reference, 1933, three-piece case