Strap for Constellation Quartz 27 Stainless Steel / Red Gold / White MOP

The lug width of the Constellation 123.20.27.60.55.007 is 16 millimetres. This dimension corresponds to the distance between the two case lugs where the strap is attached. To verify it, measure with a digital caliper the internal distance between the lugs, perpendicular to the case body.

Vintage alligator or shell cordovan are the most appropriate choices. Alligator offers a natural grain that dialogues perfectly with the luminous dial, while shell cordovan, given its density and lustre, creates a superior tactile and visual synergy. Vegetable-tanned calf represents an elegant alternative if you desire a patina that develops over time.

Proceed with a spring bar removal tool easily available online. Position the tool under the case lug, lift slightly to release the internal spring, and remove the lug from the old strap. Insert the new lugs into the bespoke strap and secure them to the case, ensuring they are properly locked by the internal spring.

Yes, provided the lug width is indeed 16 millimetres. However, you must verify that the spring bars are compatible with your model. We recommend measuring your watch before purchase and contacting the seller to confirm exact compatibility, as some Constellation construction variants may present minor differences.

A bespoke strap in alligator, shell cordovan or vegetable-tanned calf has an average lifespan of 5-10 years with daily wear, varying based on frequency of wear, sun exposure and humidity. The leather around the buckle tends to wear first. A well-maintained strap, dried after water contact and stored in a dry environment, can significantly extend its life. The Casati Milano atelier offers an 18-month warranty on all bespoke straps.