You are buying a 17mm (approx. 20mm shoulder) green buffalo grain leather cut out Swatch style watch strap. 

This is a replacement to fit Swatch style watches and is not manufactured by Swatch.

Not suitable for Swatch Skin.

Approximate size:

Hole end: 115mm (excluding cut out)

Buckle end: 70mm (excluding buckle and cut out)

This is a regular size strap.

Ref: D116