Strap for Constellation Co-Axial 38 Red Gold / Silver

The lug width of the Constellation 123.50.38.21.52.001 is exactly 20mm. This measurement is critical to ensure complete strap compatibility with the case. You can verify it by measuring internally the distance between the lateral lugs of the case where the strap attaches.

Premium alligator represents the most elegant choice, thanks to its natural grain that visually complements rose gold. For daily versatility, vegetable-tanned calf leather offers a patina that evolves naturally. Shell cordovan is ideal for those desiring maximum resistance and natural lustre. In casual settings, a NATO or vulcanized rubber preserve the case.

Strap changing is accomplished via the spring bars positioned in the lugs of the case. Using a dedicated lever or specialized tool, press the spring, extract the bar from one side, release the original strap, position the bar in the new strap, and reinsert with pressure until the safety click. If unfamiliar with the procedure, it is best to entrust the operation to a specialized watchmaker.

Yes, provided the strap has a lug width of 20mm. Artisanal or aftermarket straps compatible with this measurement guarantee the same fit as the original bracelet. Always verify the technical specifications: your lugs will not slip away and the strap will seat perfectly on the rose gold case.

A premium alligator or calf leather strap, with moderate daily use, typically lasts 3–5 years before showing significant wear. Exposure to perspiration, humidity, and UV rays shortens this interval. Vegetable tanning offers better resistance to aging. Periodic maintenance (cleaning, conditioning with specific creams) extends longevity beyond five years.