Tutorial 6 min read
Omega Speedmaster watch strap guide
One black dial, four different directions. Explore suede, nylon, rubber and woven straps, starting with the 20 mm lugs of a specific Moonwatch reference.
Blancpain · Fifty Fathoms
Fifty Fathoms Bathygraphe Quantième Annuel
Ref. 50711110NABA
Watch details and strap advice
- Case diameter
- 43 mm
- Case height
- 13.46 mm
- Case material
- Stainless Steel
- Case shape
- Round
- Water resistance
- 300 m
- Caliber
- 6054
- Dial
- Grey
The Blancpain Fifty Fathoms Bathygraphe Quantième Annuel Black / Grey / Black NATO takes a 23 mm strap: measure between the lugs and that is the only number you need. Built for water, it wears naturally on rubber or a nylon NATO; a leather strap keeps it for dry days. With a 43 mm case and 300 m of water resistance, a thicker strap balances the case. Most straps here come with quick-release spring bars, so the swap takes a minute and no tool.
Read before you choose
All stories
Tutorial 3 min read
Choosing a NATO strap or a two-piece strap
Learn how NATO and two-piece straps attach to your watch, affect wrist height, and provide security so you can choose the right style.
Tutorial 6 min read
How to change a watch strap
Identify the attachment, release the correct part and check that both tips are seated. Illustrated instructions for quick-release bars, conventional bars and nylon pass-through straps.