Oris Flight Timer 01 635 7568 4064-07 5 21 55

The Oris Flight Timer 01 635 7568 4064-07 5 21 55 takes a 21 mm watch band.

Oris Flight Timer 01 635 7568 4064-07 5 21 55, 21 mm lug width

Oris · Flight Timer

Lug width
21 mm
Case diameter
42 mm
Reference
01 635 7568 4064-07 5 21 55
Family
Flight Timer
Case material
Acciaio
Model
Flight Timer² Day Date Stainless Steel / Black / Leather
Year
2007 - 2010

Will a strap close on your wrist?

Set for this watch: 42 mm of case and 21 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

  • 21 mm is the gap between the lugs, so a 21 mm band goes in without adapters. Whether it sits flush against a 42 mm case depends on how that case is shaped.
  • 21 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 Flight Timer family the lug width is not one number: it runs 21, 22 mm. This reference is the 21 mm one, so a band bought for another Flight Timer may not fit it. Why the size changes inside a family →
  • 21 mm is not a common size: only 2,956 of the 41,485 watches measured take it (7.1%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 21 mm →