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

The lug width of the Constellation 123.20.35.20.52.001 is 20mm. This dimension is measured by calculating the distance between the metal pins that connect the strap to the case. A 20mm strap ensures perfect fit without excessive play, preserving the aesthetic balance of the 35mm case.

For the two-tone Red Gold and steel, cognac-colored alligator represents the most sophisticated choice, amplifying the warmth of the rose gold. If you prefer versatility, vegetable-tanned black calfskin offers formal elegance and natural aging. For a more dynamic style, dark grey or navy blue NATO allows daily versatility while maintaining the impact of the two-tone.

Changing the strap requires extracting the lateral pins from the case. Use a dedicated tool (spring bar tool) to compress the small internal springs and slide the pin out of the lug. Insert the new 20mm strap by aligning the holes with the pins, then reinsert the pins until they are correctly positioned. If you are not experienced, Casati Milano can perform this operation at the atelier by appointment.

Any strap with a 20mm lug width is compatible. Our <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-20mm">20mm straps</a> are available in alligator, calfskin, shell cordovan, NATO and rubber. All are handcrafted with finished lugs and can be customized in color, initials and stitching thread.

A quality leather strap (alligator or vegetable-tanned calfskin) lasts an average of 5-7 years with moderate daily use. Durability depends on the tanning method, exposure to weather conditions and frequency of use. Casati Milano straps include an 18-month warranty against manufacturing defects. Natural leather benefits from a patina that develops over time, making each strap progressively more personal and fascinating.