Full grain vegetable-tanned leather with matching liner also of vegetable=tanned leather. Medium-weight stitching around the edge completes the look.
The strap is designed to perfectly fit Straum watch cases, with inset lug cuts and a slight padded profile on the top half of the strap.
Custom Straum buckle included. All versions feature quick-release spring bars for easy fitting.
The lug-to-lug width is 22mm; full strap width is 25mm at the lugs, tapering to 20mm at the buckle. The thickness is 5mm at the lugs and tapers to 2.7mm at the buckle. Buckle strap length is 75mm long; holed strap length is 115mm.