Strap for Essence Automatic Chronometer Brown / Rubber

The Formex Essence 0330.1.6351.910 features integrated lugs with a width of 22mm. This measurement is specific to this product line and determines compatibility with aftermarket straps. Always verify that your replacement strap has spring bars dimensioned for 22mm before purchasing.

For a timepiece of this technical-elegant character, we recommend leather with vegetable tanning in brown or black tones, or a robust NATO strap. Calf leather or alligator will develop a natural patina that ages magnificently. For more sporting use, FKM rubber or Cordura are excellent alternatives.

The Formex Essence uses a standard spring bar attachment system with no proprietary mechanism. Using a dedicated spring bar tool, gently push the pin from the base inward to disengage the strap from the case. Position the new strap by aligning its lugs with the case lugs, then reinsert the pin until you hear a click.

Yes, provided the strap has spring bars dimensioned for 22mm and compatible lengths (typically 90–105mm for the upper strap and 115–135mm for the lower section). Avoid overly rigid materials that could stress the lugs; high-quality artisanal leather or structured NATO straps adapt perfectly.

A high-quality artisanal leather strap, with vegetable tanning, has an average lifespan of 3–5 years with daily wear. Longevity depends on UV exposure, humidity, and cleaning frequency. Well-maintained leather develops a fascinating patina over time; if you wish to preserve it, alternate with other straps to distribute mechanical stress.