Strap for Constellation Co-Axial 35 Stainless Steel / Yellow Gold / Lozenge Silver

The lug width of the 123.20.35.20.02.006 is 22mm, measured between the two attachment pins on the case. This is the precise distance needed for purchasing a compatible strap. Always verify with a digital caliper by measuring between the lug seats on the case, not the width of the integrated bracelet.

It depends on usage and aesthetic preferences. For formal occasions, we recommend vegetable-tanned alligator for the patina that develops over time. For daily wear, fine-grained calf offers superior color versatility. Shell cordovan creates deep visual narrative, while vulcanized rubber is ideal for summer and casual contexts.

This requires a spring bar tool (specialized watch tool). Position the watch in a padded vice, gently push the pin from the opposite side until it detaches. Remove the old strap, insert the new one by aligning the holes, and reinsert the pin until the locking click engages. If inexperienced, entrust a certified watchmaker to avoid case damage.

Yes, provided the lug width is certified at 22mm. However, always verify the strap thickness: the 123.20.35.20.02.006 prefers thicknesses between 4 and 5mm for optimal fit. Straps that are too thick or too thin can create instability or visible gaps on the case.

A quality alligator or calf strap lasts 3-5 years with regular daily wear. Shell cordovan, due to superior material density, reaches 5-7 years. Durability depends on frequency of wear, sun exposure, sweat, and humidity. Patina acceleration does not indicate wear, but rather natural aesthetic evolution of the leather.