Fitwell M1 Stainless Steel Buckle Material:316L Stainless Steel The M4 adds precise sizing

The M4 adds precise sizing without tools or strap modification

Adds up to 3mm of micro-adjustment for perfect between-hole comfort

If your strap tapers toward the buckle:Measure the width of your strap at the buckle end

It is designed to allow the tail of your strap to fit underneath the buckle side of the strap so that keepers are no longer needed

If your perfect fit falls between two holes - one too tight

Fitwell M1 Stainless Steel Buckle Material:316L Stainless Steel The M4 adds precise sizingAdd precise, half hole micro adjustment to your favorite watch straps. The Fitwell M1 replaces your existing pin buckle and doubles the number of usable fit positions giving you a smooth 3mm half hole adjustment. If youve ever found your watch slightly too tight in warm weather or too loose in the cold, the M1 solves it instantly. No tools. No strap modification. Just a precision 316L stainless steel buckle engineered for daily comfort. Features