Oyster Perpetual Bubbleback 3131

Undated3 variants

Square-end bubbleback, one of the first Rolex models with a two-piece instead of a three-piece case and the “Super Balance”. 9 3/4''' movement with 17 jewels; examples date to 1946–47 and Phillips calls a 1947 piece one of the last.

Variants over time

Explore by production yearAll recorded years

19451949

19451950

Faded ends mark approximate or unknown dates. Years are as stated by the cited sources.

Variants

24-Hour DialUndated
Dial with an added 24-hour scale. Seen as a pink dial with luminous numerals in 14k pink gold (circa 1946, with a South-American “C” import stamp on the lug) and as a black dial in yellow gold.
Bubbleback caseback24-hour dial track

Reference specifications

Brand: Rolex
Model: Oyster Perpetual
Reference: 3131
Category: Dress
Production: Undated
Case diameter: 32 mm
Movement: Automatic
Calibers: 9 3/4''' Perpetual

Specs shared by all variants. Variant pages show where a variant differs.

Oyster Perpetual Bubbleback 3131

Variants over time

Variants

Reference specifications

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Oyster Perpetual Bubbleback 3131

Variants over time

Variants

Reference specifications

Read more