903.091
903 St BE II Navigation Chronograph
Lug width: 22 mm
Source: Not yet verified Attachment: Spring barsCase size: 41 mmBlue dialCase material: Stainless steel
Sinn 903
Every reference with a known width takes the same strap size. Your reference is engraved on the case back or between the lugs at 6 o'clock.
22 mm
Verification: Not yet verified
Attachment: spring bars
41 mm case
Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.
Collection5 references
Lug widths across the line
The Sinn 903 takes a 22 mm strap: all 5 references with a listed width in our database use 22 mm. Check the reference on your case back to be sure.
Filter references by lug width
5 Sinn 903 references
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903.092
903 St II A Navigation Chronograph
Lug width: 22 mm
Source: Not yet verified Attachment: Spring barsCase size: 41 mmGrey dialCase material: Stainless steel
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903.093
903 St II G Navigation Chronograph
Lug width: 22 mm
Source: Not yet verified Attachment: Spring barsCase size: 41 mmGreen dialCase material: Stainless steel
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903.090
903 St II Navigation Chronograph
Lug width: 22 mm
Source: Not yet verified Attachment: Spring barsCase size: 41 mmBlack dialCase material: Stainless steel
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903.100
903 Ti II Anniversary Limited Edition
Lug width: 22 mm
Source: Not yet verified Attachment: Spring bars- Attachment
- classic lugs
- Status
- Listed in our database, not yet verified
No reference matches.
FAQ
What lug width does the Sinn 903 use?
The Sinn 903 takes a 22 mm strap: all 5 references with a listed width in our database use 22 mm. Check the reference on your case back to be sure. These widths come from our database and are not yet verified.
Where do these Sinn 903 lug widths come from?
From our database, which lists 5 Sinn 903 references, 5 of them with a listed width. Each reference card says whether the maker lists the width, two independent sources agree on it, or it is not yet verified.
Other Sinn collections
- 10320 mm
- 10420 mm
- 10520 mm
- 35620 mm
- 55620 mm
- 61320 mm
- EZM20 or 22 mm
- Instrumentelle Chronographen20 or 22 mm
- Instrumentelle Uhren20 or 22 mm
- Klassische Meisterwerke20 or 22 mm
- Taucheruhren20 or 22 mm
- U122 mm
- U5020 mm
Help
What is lug width?
The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.
Measure it in 30 seconds
- Take the strap off, or look at the back of it: many straps print their width.
- Measure the inside gap between the lugs with a caliper or a millimetre ruler.
- Round to the nearest whole millimetre. Most watches use 18, 20 or 22 mm.
Strap, quick release or system?
Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.