Sinn 103 St Sa Lufthansa 103.231

The Sinn 103 St Sa Lufthansa 103.231 takes a 20 mm watch band.

Sinn 103 St Sa Lufthansa 103.231, 20 mm lug width

Sinn · 103 St Sa Lufthansa

Lug width
20 mm
Case diameter
41 mm
Reference
103.231
Family
103 St Sa Lufthansa
Case material
Stainless Steel
Water resistance
200
Model
103 St Sa Lufthansa 103.231

Will a strap close on your wrist?

Set for this watch: 41 mm of case and 20 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

  • 20 mm is the gap between the lugs, so a 20 mm band goes in without adapters. Whether it sits flush against a 41 mm case depends on how that case is shaped.
  • 20 mm is one of the common sizes: 15,081 of the 41,485 watches measured take it, which is why it is the width most bands are cut in. Every watch that takes 20 mm →