Strap for Diver Quartz GMT Black - Red / Bracelet

The Formex Diver 2100.3.2072.100 features a lug width of 22mm. This dimension represents the ideal compromise for a 46.50mm titanium and stainless steel case: sufficiently generous to ensure stability during diving operations whilst maintaining harmonious proportions on the wrist. To verify the lug width correctly, insert a calliper between the two case ends from shoulder to shoulder: it should register exactly 22mm.

For the Formex Diver 2100.3.2072.100, we recommend a vegetable-tanned leather strap in dark brown tones that develops natural patina over time, or an alligator in cognac with integrated deployante for more formal contexts. For professional diving environments or extremely demanding outdoor settings, a NATO strap in ballistic canvas or military elastic offers superior moisture resistance and cleaning practicality. The choice depends on the primary use context: vegetable-tanned leather provides elegance with natural ageing, whilst fabrics guarantee extreme durability.

Changing the strap on your Formex Diver 2100.3.2072.100 requires a spring bar tool, an instrument specifically designed for this operation. Position your watch on a soft surface with the dial facing downwards. Insert the tool's tip into the small slot present on the lug, applying gentle outward pressure to release the internal spring securing the pin. Repeat on the opposite lug. Once both ends are freed, you can remove the old strap and insert the new one by aligning the pins with the lugs, pressing until you hear the locking click.

All quality straps featuring a 22mm lug width are compatible with the Formex Diver 2100.3.2072.100. Available configurations include: vegetable-tanned leather (brown, black, cognac), alligator with fine grain, vintage calf with corrugated texture, NATO straps in ballistic canvas, military elastics and FKM rubber straps for fully submersible applications. Compatibility is guaranteed exclusively by the 22mm lug width: always verify this dimension before purchase regardless of the material chosen.

The durability of a leather strap on the Formex Diver 2100.3.2072.100 depends on material quality, tanning method and usage conditions. A superior vegetable-tanned leather strap with 4.5mm thickness at the attachment point guarantees longevity of 3-5 years with regular use and moderate maintenance. Premium alligator, being more resistant to mechanical stress, can exceed 7-8 years. Frequent use in humid or submersible environments reduces durability: in such cases, we recommend alternating with NATO or FKM elastic straps. Regular maintenance (gentle cleaning, drying and periodic conditioning) significantly extends strap lifespan.