Fitwell M1 Black Buckle Size:16mm Width While the M4 is compatible

While the M4 is compatible with most

316L Stainless buckle and tang with stainless-steel spring bar

The Fitwell M1 Bead Blasted Titanium replaces your existing pin buckle and doubles the number of usable fit positions - giving you a smooth 3mm “half-hole” adjustment

If your strap is straight (non-tapered):Select the M1 size that matches your lug width

The Fitwell Micro-Adjust Universal Link gives you the same precise fit as the Fitwell M1 buckles

Fitwell M1 Black Buckle Size:16mm Width While the M4 is compatibleAdd precise, half hole micro adjustment to your favorite watch straps. The Fitwell M1 Black buckle 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 black finished 316L stainless steel buckle engineered for