Seiko R0261, 18mm black cowhide leather strap

New Seiko black cowhide leather strap.

18mm at lugs tapers to 16mm at the buckle. Not suitable for vintage Seiko, GS, KS buckles, as those are 15mm wide. 

This is one of my go to straps for many vintage GS, KS and LM models for less dressy, yet still elegant look. 

It's 3mm thick with side stitching. 

Made for Japan's humid summers, it is refreshing negative ion water repelling, antibacterial and deodorizing. 

It is also soft and comfortable to wear.