It uses Italian Top Grain calf leather which also has a brush-off effect on the top of the band. Brush-off leather is a type of finishing characterized by a layer of dye which cover the surface of the leather making it very uniform and resistant.

Specs:
Material: Genuine Calf Leather

Buckle Material: Stainless Steel

Length(s): 125 / 75mm Buckle Material: Stainless Steel
Wrist Size: 6.6"-7.5" Taper: Yes

Thickness: 4mm – 3mm

Compatibility:
Compatible for Tudor, Omega, Panerai, Tag Huer, Rolex, Seiko.
Also can fit for Samsung Galaxy Watch in 20mm or 22mm.