Tudor
Black Bay 31
Ref. M79600-0002
- Case diameter
- 31 mm
- Manufacturer spec
- Lug-to-lug
- —
- Not published
- Thickness
- —
- Not published
- Lug width
- 17 mm
- Unverified
Retail price $4,600 (US, Oct 2026)
We have not verified this watch’s lug-to-lug yet, so we can’t draw it on a wrist. Case diameter alone is a poor guide to fit.
How the Black Bay 31 wears
Its 17 mm lug width is less common (5 other watches here), so check strap sizes carefully.
Specifications
- Reference
- M79600-0002
- Collection
- Black Bay
- Status
- In production
- Case material
- stainless steel
- Crystal
- sapphire
- Water resistance
- 100 m
- Bezel
- smooth steel
- Dial
- blue
- Strap / bracelet
- stainless steel bracelet, folding clasp
- Style
- Everyday, Dress
Movement
- Caliber
- Tudor MT5201
- Type
- automatic
- Power reserve
- 50 hours
- Accuracy
- COSC
Takes 17 mm straps. See other 17 mm watches and straps.
More Black Bay references
- TudorBlack BayM7941A1A0RU
- Case
- 41 mm
- Lug-to-lug
- 50 mm
- Thick
- 13.6 mm
- TudorBlack Bay 68M7943A1A0NU-0001
- Case
- 43 mm
- Lug-to-lug
- 51.8 mm
- Thick
- 13.6 mm
- TudorBlack Bay CeramicM79210CNU
- Case
- 41 mm
- Lug-to-lug
- 50 mm
- Thick
- 14.4 mm
- TudorHeritage Black Bay 36M79500
- Case
- 36 mm
- Lug-to-lug
- 44 mm
- Thick
- 10.4 mm
- TudorHeritage Black Bay 41M79540
- Case
- 41 mm
- Lug-to-lug
- 50.1 mm
- Thick
- 11 mm
Same 17 mm lug width
All 17 mm watchesThese take the same straps as the Black Bay 31.
- HamiltonVentura QuartzH24411732
- Case
- 32 mm
- Lug-to-lug
- 50 mm
- Thick
- 9.3 mm
- LonginesConquest 34mm QuartzL3.460.4.92.6
- Case
- 34 mm
- Lug-to-lug
- 41.6 mm
- Thick
- 8.8 mm
- Nomos GlashütteTangente 33 duo doré120
- Case
- 32.8 mm
- Lug-to-lug
- 42.2 mm
- Thick
- 6.5 mm
- SeikoPresage Cocktail Time 33.8mmSRP841
- Case
- 33.8 mm
- Lug-to-lug
- 40.4 mm
- Thick
- 11.3 mm
- SeikoPresage Cocktail Time 34mmSRPL64
- Case
- 34 mm
- Lug-to-lug
- 40.4 mm
- Thick
- 10.7 mm