Watch Buckle Quick Release Replacement Tang Clasp 

Available in your choice of solid 14k or 18k Gold in any color to match your watch (Yellow, Rose, White) Standard high polish mirror finish, but you can specify brushed finish at no extra cost.
Also available in Solid Platinum
Also available in Stainless steel (brushed finish)

 
Width of buckle: 20 mm
Match this width to the end of the strap that accepts the buckle. This may differ from the width of the strap between the lugs. Straps commonly taper, so if your strap is 24 mm between the lugs it may taper to 20 mm at the buckle.
Check to make sure you have the right measurement

Buckle Style: Easy release Tang buckle

These solid gold Tang buckles are designed to fit the strap of your high end luxury watch. It is made to match the quality and fit your Rolex watch and other brands like Omega, Breitling, Cartier, IWC, and Patek Philippe.

Purchase price includes tang buckle and steel spring bar. Any strap used is for illustrative purposes only