Strap for Constellation Manhattan 29 Co-Axial Master Chronometer Sedna Gold / Blue Aventurine

The Omega Constellation 131.53.29.20.99.001 has a lug width of 18mm. This dimension is standard for contemporary generation Omega women's watches and corresponds to the distance between the two shoulders of the case. To verify compatibility with your watch, measure the internal distance between the lugs from the metal base: it must be exactly 18mm.

For Sedna Gold, Mississippi alligator represents the most aesthetically coherent choice: the fine grain reflects the value of the precious case and develops a fascinating patina over time. Alternatively, vegetable-tanned calf leather offers versatility and develops a natural amber patina that Sedna Gold illuminates magnificently. For sports contexts, sophisticated FKM rubber (not generic silicone) combines practicality with refinement.

The Omega Constellation 131.53.29.20.99.001 is equipped with integrated shoulder lugs. To change the strap, use a spring bar tool: insert the tool from below into one of the two lateral grooves of the case until you gently lever the metal shoulder. The original strap should slide off without excessive force. Insert the new strap by aligning the lugs to the case and pushing gently until it clicks. If you are unsure of the procedure, contact an authorized Omega service center.

Yes, any strap with an 18mm lug width is compatible with the Omega Constellation 131.53.29.20.99.001. At milanostraps.it you will find artisanal straps in alligator, calf, shell cordovan and customizable synthetic materials in sizes, initials and thread colors. Casati Milano, our atelier by appointment, creates bespoke straps with personal leather selection and 18-month warranty.

Durability depends on the material and usage. An alligator or shell cordovan strap, with vegetable tanning and ordinary maintenance (protection from excessive water and humidity), lasts 4-6 years before requiring replacement due to natural wear on the lugs. Vegetable-tanned calf in dark colors lasts 3-4 years. Silk NATO straps have superior durability (5-7 years). The visual aging of leather – patina, slight color variations – is a desired characteristic that increases the aesthetic value of the watch, not a defect.