Strap for Constellation Quartz 27 Brushed Stainless Steel / Diamond / MOP

The lug width is exactly 20mm. This specification is crucial for purchasing compatible straps. You can verify it by measuring the internal cavity between the case lugs with a digital caliper. Straps of 19mm or 21mm would not guarantee correct closure and could irregularly stress the spring bars.

Alligator is the most refined choice: the symmetrical grain perfectly complements the rounded case lugs. For a more understated approach, vegetable-tanned calf leather offers fine texture and ages with natural patina. For casual contexts, vulcanized rubber maintains proportions without weighing down the wrist.

To change the strap on the Constellation 123.15.27.60.55.001, you need to remove the spring bars connecting the strap to the lugs. Use a strap removal tool designed for watches, gently pushing the bar from one side to release the strap. Ensure the new strap has a 20mm lug width. If you prefer to avoid the procedure, the Casati Milano atelier offers professional strap change with warranty.

Yes, any strap with a 20mm lug width is compatible with the Constellation 123.15.27.60.55.001. On milanostraps.it you will find collections of straps in alligator, calf, and rubber, all customizable in size, initials, and stitching thread. The important thing is to verify that the width is exactly 20mm to ensure correct closure.

The lifespan of a leather strap depends on use and quality. Genuine alligator in vegetable tanning lasts an average of 3-5 years with regular maintenance (gentle cleanser, air drying, avoiding direct exposure to sun and humidity). Calf can last 2-3 years. To extend the strap's life, Casati Milano recommends alternating at least two straps, reducing wear on a single one. The included warranty is 18 months.