Strap for Essence Automatic Chronometer Brown / Bracelet

The Formex Essence 0330.1.6351.100 has a lug width of 22mm. This measurement represents the internal distance between the two lugs (spring bar attachment points) that suspend the original strap. It is essential to verify this dimension before purchasing an aftermarket strap: a strap with incorrect lug width will not be mechanically compatible with the watch's suspension mechanism.

For the 43mm Formex Essence 0330.1.6351.100, we recommend vegetable-tanned leather straps (burnished black or brown) for an elegant and robust pairing, or calf leather with fine grain in cognac tones for versatility. If you prefer practicality, a NATO strap in grey or black nylon offers thermal comfort and moisture resistance. In summer, vulcanised natural rubber straps deliver exceptional grip and ease of maintenance. Your choice depends on your primary use case: formal or sporty.

To change the strap on your Formex Essence 0330.1.6351.100, remove the spring bars from the original lugs. Use a dedicated spring bar tool to compress the internal springs and gently extract them from the case. Repeat symmetrically on the other side. Once extracted, insert the spring bars into the holes of the new strap. Ensure the new strap has a 22mm lug width for precise fitment. If you are not experienced, consult a watchmaker or contact Milano Straps staff for professional strap replacement.

Yes, any strap manufactured for a 22mm lug width is compatible with the Formex Essence 0330.1.6351.100, regardless of brand. However, it is critical to verify that the strap has been constructed to correct tolerances: economically-produced straps with imprecise holes may cause mechanical instability or insertion difficulty. In our catalogue, all 22mm straps are individually selected and verified to guarantee compatibility and constructive precision with Swiss watchmaking standards.

The longevity of a leather strap depends on the tanning process and usage pattern. A quality vegetable-tanned leather strap, worn moderately (3–4 days per week), can last 3–5 years before requiring replacement, during which it will develop an appreciable natural patina. Softer calf leather typically lasts 2–3 years. To extend strap lifespan, avoid prolonged moisture exposure, occasionally apply natural leather conditioner, and rotate with other straps to reduce concentrated wear. NATO and rubber straps offer greater durability (5–7 years) but require less visual maintenance.