Strap for Constellation Co-Axial 38 Stainless Steel / Red Gold / Diamond / Silver

The lug width of the Constellation 123.25.38.21.52.003 is 19mm. This measurement represents the distance between the pins that connect the strap to the case. Verify by measuring the internal space between the metal lugs to ensure absolute compatibility with your new strap.

For the 123.25.38.21.52.003 model we recommend black or brown alligator for formal occasions, vegetable-tanned calf for natural color development, or burgundy shell cordovan for refined contrast. The choice depends on your use (office, dinner, leisure) and the season. A steel or rose gold deployant clasp completes the setup.

Remove the strap using a spring bar tool to release the lug pins. Push the pin inward to disengage the spring and pin itself. Repeat on the other side. Insert the new strap by aligning the pins into the lug slots, pressing until the spring clicks into place. Never force directly with screwdrivers.

Yes. Any strap with 19mm lug width is compatible with the Constellation 123.25.38.21.52.003. On milanostraps.it you will find a complete collection of 19mm straps in fine leather, rubber and technical materials, all customizable in length, initials and stitching thread.

A quality leather strap (alligator, calf, shell cordovan) typically lasts 3-5 years with regular use. Durability depends on climate (humidity accelerates wear), frequency of use and care. Vegetable tanning ages with natural patina without degrading; rubber lasts 5-7 years. Casati Milano guarantees 18 months on custom straps with replacement service.