Blancpain Fifty Fathoms Bathyscaphe 5903 1110 63A

The Blancpain Fifty Fathoms Bathyscaphe 5903 1110 63A takes an 18 mm watch band.

Blancpain Fifty Fathoms Bathyscaphe 5903 1110 63A, 18 mm lug width

Blancpain · Fifty Fathoms Bathyscaphe

Lug width
18 mm
Case diameter
37.4 mm
Reference
5903 1110 63A
Family
Fifty Fathoms Bathyscaphe
Case material
Acciaio inossidabile
Water resistance
300

Will a strap close on your wrist?

Set for this watch: 37.4 mm of case and 18 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.

75 mm115 mm

Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.

Why ready-made straps come in one length →

Sizing notes

  • 18 mm is the gap between the lugs, so a 18 mm band goes in without adapters. Whether it sits flush against a 37.4 mm case depends on how that case is shaped.
  • 18 mm is not a common size: only 3,965 of the 41,485 watches measured take it (9.6%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 18 mm →