Fitwell Buckles
Fitwell M1 Black Buckle
Fitwell M1 Black Buckle
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Free US Shipping $50+
Add precise, on-wrist micro-adjustment to your favorite watch straps. The Fitwell M1 Black replaces your existing pin buckle and doubles the number of usable fit positions - giving you a smooth 3mm “half-hole” adjustment whenever your wrist size changes throughout the day.
If you’ve 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 lightweight titanium buckle engineered for daily comfort.
Features
- Compatible with most leather, rubber, or fabric straps
- Installs in place of your existing pin buckle - no modification needed
- Adjusts on the wrist with a smooth 3mm micro-adjustment
- 316L Stainless buckle and tang with stainless-steel spring bar
- Includes one installed spring bar + one spare
- Free US Shipping $50+
- Free US Returns
Choosing Your Size
Your Fitwell M1 size is based on the width of your strap at the buckle - not the lug width of your watch.
If your strap is straight (non-tapered):
Select the M1 size that matches your lug width.
If your strap tapers toward the buckle:
Measure the width of your strap at the buckle end, or the inside width of your current buckle, using a ruler, tape measure, or caliper.
Choose the M1 size that matches that measurement.
Most tapered straps narrow by 2–4 mm.
Examples:
- A 20mm strap (at the lugs) tapering to 16mm → choose a 16mm M1
- A 22mm strap (at the lugs) tapering to 18mm → choose an 18mm M1
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Loved the idea, but doesn't help with my Wrist Outfitters sailcloth and leather strap. When I pull it snug, the buckle just moves to the looser position, so the strap doesn't feel more snug. Oh well.....
The Fitwell adjustable clasp really hits the spot - or rather the spots! I put it on a combo woven leather and rubber band for my FitBit. It gives me the flexibility to tighten and loosen the tracker to just the right tightness - not too loose - not too tight. Great product, highly recommended!
I can’t say enough wonderful things about this product. I ordered the 16mm and 18mm buckles in both steel and titanium, and they are simply fantastic. The quality is outstanding, and they perform perfectly.
I’ve decided to retire my deployant clasp because I absolutely love the slim profile this buckle gives to my watch. The ability to adjust it on the fly is a huge advantage and makes it incredibly practical for daily wear.
Beyond the product itself, this company truly cares about its customers. When I experienced a shipment delay with the courier, I reached out to them. They immediately sent replacement items with expedited shipping, and Tom even covered the clearing fees. That level of service speaks volumes.
This is a company that truly understands the meaning of customer satisfaction. I can’t recommend them highly enough. Thank you!
Best buckle on the market right now works as advertised
One of my favorite nice watches had that tweener issue…right between 2 strap holes. Nice strap too, didn’t want to swap it. Finally got round to putting one of these on. Voila!