Strap for Diver Automatic Black / Bracelet

The lug width of the Formex Diver 2100.1.7020.110 is 22 millimetres. This measurement represents the modern standard for professional diving watches and allows fitting any aftermarket strap with compatible tolerances. A 22 mm lug width on a 46.5 mm case ensures balanced visual proportions and secure fastening of the articulation pins.

The choice of strap depends on its actual use. For technical diving, an FKM rubber strap provides complete water resistance and easy cleaning. For elegant transitions between environments, an alligator with titanium deployante represents the refined solution. Vegetable-tanned Tuscan leather balances aesthetics and durability, developing natural patina over time. For chromatic variety without investment, NATO straps in ballistic nylon allow frequent changes.

Changing the strap is straightforward: insert a spring bar tool under the articulation pin, release tension from the internal spring and extract the pin laterally. Remove the old strap. Insert the new strap by aligning its lugs with the holes in the case lugs, then reinsert the pin with the tool until the spring clicks into position. Verify that the strap is firmly secured before wearing the watch.

Yes, the Formex Diver 2100.1.7020.110 accepts any strap with a 22 millimetre lug width. Formex deliberately designed the lugs with tight tolerances to ensure reliable pin fastening. A quality artisanal aftermarket strap often improves the tactile experience compared to the original strap, allowing you to personalise the aesthetic without compromising case integrity.

Durability depends on material and maintenance. Vegetable-tanned calf typically lasts 5–7 years with regular use and periodic cleaning. Shell cordovan offers superior longevity (8–10 years) due to natural fibre density. Artisanal Tuscan leather achieves 6–8 years if kept dry and nourished with specific vegetable oils. In frequent aquatic environments, an FKM rubber strap is more appropriate, as leather suffers from continuous immersion in salt water.