Strap for Essence Automatic Black / Calf

The lug width (distance between the lugs) of the Formex Essence 0330.1.7321.713 is 22mm. This measurement is the ideal standard for the 43mm case diameter, ensuring proportionate and visually harmonious strap compatibility. Measurement should be taken between the two metal pins connecting the strap to the case lugs.

We recommend vegetable-tanned leather, preferably Tuscan or European sourced, in dark tones such as dark brown, burgundy, or black. These materials age gracefully and develop a patina that dialogues harmoniously with the brushed stainless steel case. For sports use or humid environments, vulcanized rubber offers superior grip and longevity.

The process is straightforward: position the watch with lugs facing upward. Use a spring bar tool (a small implement with a forked end) to compress the metal pin of the lug, applying gentle leverage. The strap will detach. Repeat on the opposite side. To install a new strap, seat one end of the lug in the pin first, then compress the pin with the tool until it clicks into position. Verify the strap is secure before wearing.

Not necessarily. Although 22mm lug width is a standard measurement, compatibility depends on additional factors: lug thickness, pin diameter, case width, and overall proportional harmony. A 22mm strap designed for the Formex Essence will be aesthetically coherent; the same strap on a smaller watch may appear disproportionate. Always verify the specific constructive parameters of your watch.

A well-crafted strap in vegetable-tanned leather typically lasts 3-5 years with moderate daily use, potentially extending to 7-8 years with attentive maintenance (regular cleaning, drying after humidity exposure, protection from prolonged sweat). Lifespan depends on climate, frequency of use, activity type, and care protocols applied. Properly vulcanized rubber straps maintain elasticity for 5-7 years before beginning to stiffen.