Best straps for the Sinn 903 St
20 mm lugs, 41 mm case, reference 903.040. Try a strap below; the drawing is to scale.
Strap
Colour: Black
Strap width20 mm
At the buckle18 mm
Lug to lug49 mm
Looks that work on the Sinn 903 St
Sinn 903 St specs
- Case
- 41 mm × 15 mm thick
- Lug width
- 20 mm
- Lug to lug
- 49 mm
- Case material
- stainless steel
- Movement
- SW 500 / Valjoux 7750 based, automatic chronograph
- Water resistance
- 100 m
From the maker's published figures, gathered with AI help and not yet checked against a watch in hand. Measure your lugs before you buy.
Strap size for the Sinn 903 St
What size strap fits the Sinn 903 St?
The Sinn 903 St takes 20 mm straps: its lug width is 20 mm. A leather strap will usually taper to 18 mm at the buckle.
How big is the Sinn 903 St?
The case is 41 mm across, and about 49 mm from lug tip to lug tip.
What strap looks best on the Sinn 903 St?
Good options are an oxblood leather strap, a steel three-link bracelet, a grey suede strap. Try them all on the drawing above.
Sizes come from published specs. Check yours before you buy: how to measure lug width.