The deployment clasp is the perfect replacement for regular pin buckle.

It's easier to take on and off, and it saves some wear and tear on the leather watch band because you don't bend the end of the band at all when you put on the watch.

Compared with the hollow design, the solid buckle will not pinch your skin or catch your body hairs.

Be aware that many watch bands have a taper and are more narrow at the end where the buckle attaches than at the end where the watch attaches.

Order the size appropriate for the end of the watch band where you will be attaching the watch clasp rather than the measurement between the watch's lugs.