Strap for Constellation Co-Axial 38 Sedna Gold

The lug width is 20mm. This is the distance between the pins (metal tubes) that hold the strap. It is essential to verify this measurement before ordering a compatible strap, as an incorrect size would alter the aesthetic proportion of the case.

We recommend alligator in dark brown or cognac tones for classic elegance, or black shell cordovan for sophisticated contrast. Vegetable-tanned calf in whisky tones offers versatility and a patina that evolves over time. The choice depends on your personal style and the watch's intended use.

The Constellation 123.53.38.21.02.001 requires the use of a spring bar tool. Position the tool under the pin, press gently to release it, and slide off the old strap. Insert the new strap aligning it with the pins, then reposition the pins. If you are not experienced, we recommend Casati Milano atelier for precise and safe strap change.

Yes, any strap with 20mm lug width is compatible with the 123.53.38.21.02.001. Milano Straps offers a selection of artisanal straps in various materials (alligator, calf, shell cordovan, rubber) ready to ship and customizable. Casati Milano atelier also creates bespoke straps made to measure with 18-month warranty.

An artisanal quality leather strap typically lasts 3-5 years with daily use, varying based on the material chosen and exposure to moisture and sunlight. Shell cordovan and alligator tend to resist longer. Vegetable tanning evolves aesthetically over time, developing a patina that characterizes the piece. We recommend the 18-month warranty offered by Casati Milano to protect your investment.