Strap for Element Automatic Chronograph Ceramic Bezel / White / Calf

The Formex Element 1200.5.8017.713 features a 25-millimetre lug width (inner to inner distance). This dimension is specific to this model and requires straps with precisely matched lug width to avoid lateral play and ensure structural soundness. A digital calliper allows you to verify the exact distance between the two spring bar holes on the case.

The choice depends on your use case. For technical and professional settings, we recommend alligator leather with structured grain that enhances the tool watch character, or NBR rubber for marine and industrial environments. Vegetable-tanned calf leather is an elegant alternative for those who prefer tactile softness. We advise against glossy or satin synthetic leathers, which would contradict the watch's fundamental design premise.

Use a spring bar removal tool: position the thin end into the lateral access hole on the inside of the case near the lug attachments. Apply gentle pressure to retract the spring pin—never force it. The pin will withdraw, freeing the strap. Insert the new strap by aligning one side first, then push the opposite pin until you hear a click. Verify that both sides are securely anchored before wearing the watch.

No. A 24-millimetre strap will create noticeable lateral play on the 46-millimetre case, accelerate spring pin wear through premature stress, and produce a structurally weak appearance. The 25-millimetre lug width is precise and does not accept compromise. Straps marketed as 'universal 24–25mm' represent a construction compromise that contradicts the Swiss precision of your Element.

With moderate use and regular maintenance (occasional cleaning, protection from extreme humidity), a natural leather strap typically lasts 3–5 years before replacement is necessary. Frequent marine contact or intense perspiration accelerates degradation. For these scenarios, choose NBR rubber instead. Patina is part of the ownership narrative, not a flaw: it represents the natural ageing of noble materials.