buckle.
The strap fits OMEGA, Rolex, Tag Heuer, Hugo Boss, Tissot etc.
The end of the buckle side is 16mm.
Buckle size: 16mm
Fitted 18mm, 20mm and 22mm lug watches
Straps size:
Length: 120mm +75mm (4.75" + 3.00" )approx. without buckle
Thickness: 3.00mm - 4.00mm approx.
Use a metric ( mm ) to measure your watch lug size