Rolex 5015 Oyster Perpetual Bubbleback

Oyster Perpetual -> 5015

The 5015 is a self-winding Oyster Perpetual Bubbleback documented in at least two gold configurations: 14k solid yellow gold with an engine-turned bezel and a champagne dial, and 18k yellow gold paired with stainless steel on a simpler dial. Dating is where the documented examples disagree. Two independent dealer listings place the reference circa 1948 to 1950. An Antiquorum auction lot — the most formally catalogued example located — dates its watch circa 1961, a decade or more after the Bubbleback family is generally considered to have wound down. Both readings are recorded here rather than one overriding the other.

A separate listing under the same "5015" name describes a hand-wound, 25-jewel steel watch with a black dial — mechanically incompatible with the self-winding, automatic construction that defines a genuine Bubbleback. That listing is very likely describing a different, unrelated Rolex reference mislabeled under the 5015 number, a mix-up already documented elsewhere across Bubbleback-adjacent reference lists on less careful sources; it is flagged here rather than folded into the reference's real production story.

Rolex 5015 Bubbleback, gold case

Core facts

detail	value
reference	5015
family	Oyster Perpetual (Bubbleback)
common name	"Bubbleback"
production	disputed — two dealer sources give circa 1948–1950; one Antiquorum auction lot gives circa 1961
case	documented in 14k solid yellow gold (engine-turned bezel, ~30.8mm) and 18k yellow gold with stainless steel (32mm)
movement	self-winding; one example specifies caliber sized 9¾ lignes, another an 18-jewel COSC-certified automatic caliber
dial (documented)	champagne with applied gold Arabic numerals, gold leaf hands, blued seconds hand (14k example); unspecified signed dial (18k/steel example)
documented examples	Antiquorum lot 47 (case no. 647355, movement no. 81376, 18k gold and steel, unsold/passed); a 14k solid gold example with engine-turned bezel, sold "mint+"

Where it sits in the line

"Bubbleback" is a collector nickname, never an official Rolex designation, for the family of Oyster Perpetual references built around the domed caseback needed to clear the early automatic winding rotor. Most sources place the Bubbleback family's production window from 1933 through the mid-1950s, so a circa-1948 dating for the 5015 sits comfortably inside that range, while a circa-1961 dating — the year given on the Antiquorum lot — would place a self-winding, movement-generation-consistent Bubbleback watch a decade past when the family is generally understood to have wound down. Rolex did keep some older case and movement architectures in limited late production after officially moving the catalogue forward, so a late-production 5015 is not impossible; it is simply not corroborated by any other documented example located here.

The engine-turned bezel documented on the 14k example is the same decorative option documented on a 3725 from the same generation — a genuine, if uncommon, bezel treatment across the wider Bubbleback range, offered as an alternative to the plain domed bezel most examples carry.

Production outline

Two independent listings — an eBay listing and a dealer catalogue entry — place a solid-gold 5015 circa 1948 to 1950. The Antiquorum lot, the only example with a full formal auction catalogue entry located here, dates its 18k gold and steel example to circa 1961. No source located here resolves the discrepancy, and both readings are presented rather than treated as settled.

Movement notes

The Antiquorum lot specifies a self-winding movement sized 9¾ lignes. A separately documented 14k gold example specifies an 18-jewel automatic caliber with COSC chronometer certification. Both are self-winding, consistent with the Bubbleback family's defining mechanical feature; neither source gives a specific numbered caliber.

Dial map

The 14k gold example carries a champagne dial with applied gold Arabic numerals, embossed gold dot minute and second markers, gold leaf-style hands, and a blued steel seconds hand — a dressier configuration than the plainer signed dial documented on the 18k gold and steel Antiquorum example.

Case, bezel, crystal, and crown

Two case treatments are documented: solid 14k yellow gold with an engine-turned bezel, measuring approximately 30.8mm diameter and 38.5mm lug-to-lug; and 18k yellow gold paired with stainless steel at 32mm, bezel style unspecified in the auction catalogue. The 14k example's crystal is bombé acrylic, a period-correct domed plastic crystal rather than sapphire or flat mineral glass.

Related references

Bubbleback 3130 — same self-winding family, solid gold construction documented
Bubbleback 3725 — same era, also documented with an engine-turned bezel

Auction record

Sale	Lot	Case no.	Configuration	Estimate	Result
Antiquorum, Hong Kong, 31 May 2026	47	647355	18k yellow gold and stainless steel, self-winding, circa 1961 (per lot catalogue)	HKD 30,000–60,000	Unsold

The Antiquorum lot did not meet reserve. The 14k gold engine-turned-bezel example is documented as sold through a dealer listing without a disclosed price.