Fits on: 
Santos de Cartier Medium

Strap Details:
Material/Finish: Vegetable Calfskin
Color: Dark Brown
Lug Distance: 18.50 mm
Length 6h/12h: 115 X 90 (M)
Lining: Black Calfskin
Stitching: Tone on tone stitching clearer top/bottom
Padding: Padded 2.5 - 4.5

Buckle:
Buckle not included (IADB)
Fits Buckle type: Interchangeable Deployant Buckle
Buckle size: 15.30mm