Rolex Bubbleback 3131
The Rolex Bubbleback 3131 takes a 17 mm watch band.
Rolex · Bubbleback
- Lug width
- 17 mm
- Case diameter
- 31 mm
- Reference
- 3131
- Family
- Bubbleback
- Case material
- Oro
- Model
- Bubbleback 3131
- Year
- 1930s
Will a strap close on your wrist?
Set for this watch: 31 mm of case and 17 mm between the lugs. Add your wrist and see where a standard strap would close.
mm
Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.
Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.
Sizing notes
- 17 mm is the gap between the lugs, so a 17 mm band goes in without adapters. Whether it sits flush against a 31 mm case depends on how that case is shaped.
- This reference has drilled lugs: the spring bars are accessible from the outside, which makes band changes easier and safer on the case.
- 17 mm is an odd size: most ready-made bands are made in even widths, so this reference needs one cut to measure or a band that runs in odd sizes. Why some watches take odd sizes →
- Inside the Bubbleback family the lug width is not one number: it runs 16, 17, 20 mm. This reference is the 17 mm one, so a band bought for another Bubbleback may not fit it. Why the size changes inside a family →
- 17 mm is not a common size: only 569 of the 41,485 watches measured take it (1.4%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 17 mm →
Other Bubbleback references
- 17 mmBubbleback 31323132
- Bubbleback 50505050
17 mm - Big Bubbleback 6105 (pre-Datejust)6105
20 mm - 16 mmBubbleback 92909290
- 16 mmBubbleback 92919291
