Strap for Essence Automatic Silver / Rubber

The lug width of the Formex Essence 0330.1.7341.910 is 22 millimetres. This refers to the internal distance between the two suspension pins on the case. To verify, measure perpendicularly between the inner extremities of the lugs: 22mm is the effective space where the strap sits. This dimension is critical for ensuring complete compatibility with aftermarket straps.

The optimal strap depends on intended use. For formal elegance, we recommend vegetable-tanned veal leather in taupe brown or black: the natural grain dialogues well with the technical geometry of the 43mm case. For sporting contexts, a woven NATO strap offers versatility and rapid changeability. For humid or aquatic environments, FKM vulcanised rubber ensures durability without water absorption. Your choice should consider the dial colour and wearing context.

Strap replacement is straightforward: locate the two lateral suspension pins on the case. Using a dedicated tool (spring bar tool) or fine lever, gently press inward on the compressed pin, creating sufficient space to remove the old strap. Once removed, align the new strap holes with the pins and release the pressure. The pin will click into position. Verify complete seating before wearing the watch.

Yes, any strap with a 22mm lug width is compatible. The Formex Essence case accepts straps in any material—leather, rubber, NATO fabric—provided the lug width matches exactly. We recommend artisanal straps made from premium-grade leather or vulcanised rubber to maintain the watch's constructive coherence. Avoid excessively thin straps (under 3mm) which may not provide adequate structural support for the 43mm case.

Longevity depends on tanning quality and intensity of use. An artisanal vegetable-tanned veal strap, under moderate daily wear, typically lasts 3–5 years before significant structural failure occurs. Durability increases if the watch is worn sporadically or in dry conditions. Leather naturally wears in areas of flexion and friction; this ageing is desirable when it follows vegetable-tanning principles. Chromium-tanned leather straps last marginally longer (4–6 years) but develop less aesthetic patina.