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

The lug width is 20 mm. This measurement corresponds to the space between the two lugs of the case where the strap is attached. It is essential to verify this dimension to ensure compatibility with aftermarket straps, as a strap of different width will not fit correctly to the case.

The choice depends on the intended use. For formal and black-tie occasions, alligator represents the most elegant solution. For a versatile everyday interpretation, vegetable-tanned calf offers lasting artisanal quality. Shell cordovan is ideal if you desire structured leather with rich personality. For sports or casual environments, rubber or NATO guarantee practicality without compromise.

The strap is changed using a spring bar removal tool. Position the watch on a soft surface, locate the small hole on the inner part of the lug, gently insert the tool and push the spring bar until it is fully seated. At this point, the strap comes out easily. Reverse the process to install the new 20 mm strap. If you are not experienced, the Casati Milano atelier offers this service with expertise and professional equipment.

Yes. Milanostraps offers online a collection of 20 mm straps ready for shipment, customizable in materials such as alligator, calf, shell cordovan and others. Each strap can be customized for exact sizing, engraved initials and stitching choice. The Casati Milano atelier also creates bespoke pieces with direct leather selection and 18-month warranty.

Durability depends on material, tanning and daily use. A high-quality alligator strap with vegetable tanning lasts between 3 and 5 years with regular wear, developing a natural patina over time that increases its appeal. Shell cordovan, being more durable and rigid, can last 5-7 years. Periodic maintenance (gentle cleaning, natural drying, annual conditioning) significantly extends the longevity of the leather.