The strap size depends on the reference. Yours is engraved on the case back or between the lugs at 6 o'clock.
20 or 22 mm
Verification: Two sources agree on ref. 856.011
38.5 to 41 mm cases
Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.
Sinn Instrumentelle Uhren references in our database. Each card says where its width comes from: listed by the maker (linked to the maker's page in the details), two independent sources agree, or listed in our database and not yet verified by us.
Instrumentelle Uhren 104 St Sa A B E Limited Edition
Lug width: 20 mm
Source: DatabaseCase size: 41 mmdunkelblau dialCase material: Stainless steel, polished
Instrumentelle Uhren 104 St Sa A G
Lug width: 20 mm
Source: DatabaseCase size: 41 mmGreen dialCase material: Stainless steel, polished
Instrumentelle Uhren 556 I M
Lug width: 20 mm
Source: DatabaseInstrumentelle Uhren 556 Jubiläum
Lug width: 20 mm
Source: DatabaseInstrumentelle Uhren 556 Limited Editon
Lug width: 20 mm
Source: DatabaseCase size: 38.5 mmSmaragdgrün dialCase material: Stainless steel, satin-finished
Instrumentelle Uhren 556 Limited Editon
Lug width: 20 mm
Source: DatabaseCase size: 38.5 mmKarneolrot dialCase material: Stainless steel, satin-finished
Instrumentelle Uhren 556 Limited Editon
Lug width: 20 mm
Source: DatabaseCase size: 38.5 mmCitringelb dialCase material: Stainless steel, satin-finished
Instrumentelle Uhren 856
Lug width: 20 mm
Source: Two sourcesBlack dial
Instrumentelle Uhren 856 B-Uhr
Lug width: 20 mm
Source: DatabaseInstrumentelle Uhren 856 S
Lug width: 20 mm
Source: DatabaseInstrumentelle Uhren 856 S UTC
Lug width: 20 mm
Source: DatabaseInstrumentelle Uhren 857
Lug width: 22 mm
Source: DatabaseInstrumentelle Uhren 857 S UTC
Lug width: 22 mm
Source: DatabaseInstrumentelle Uhren 857 UTC
Lug width: 22 mm
Source: DatabaseInstrumentelle Uhren 857 UTC TESTAF
Lug width: 22 mm
Source: DatabaseInstrumentelle Uhren 857 UTC TESTAF LH Cargo
Lug width: 22 mm
Source: DatabaseInstrumentelle Uhren 857 UTC VFR
Lug width: 22 mm
Source: DatabaseInstrumentelle Uhren EZM 12
Lug width: 22 mm
Source: DatabaseInstrumentelle Uhren EZM 7
Lug width: 22 mm
Source: DatabaseInstrumentelle Uhren EZM 9 TESTAF
Lug width: 22 mm
Source: DatabaseNo reference matches.
Sinn Instrumentelle Uhren lug width: 20 or 22 mm depending on the reference. The most common is 20 mm (11 of the 20 references with a listed width in our database). Find your exact reference in the table below. The Sinn Instrumentelle Uhren ref. 856.011 takes 20 mm (two independent sources agree).
No. 2 different lug widths appear across the line, often by case size or generation. Check the reference engraved on the case back or between the lugs.
From our database, which lists 20 Sinn Instrumentelle Uhren references, 20 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.
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.
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.