Strap for Constellation Co-Axial 35 White Gold / Diamond / MOP Supernova / Rubber

The lug width of this Constellation is exactly 18mm. This measurement represents the internal distance between the two lugs on the case and is essential to ensure compatibility with your chosen strap. Measuring the lug width correctly is crucial: use a digital caliper or a millimeter ruler, positioning the tool between the inside of the two lugs.

Alligator remains the most natural choice for a 35mm white gold Constellation: the linear texture of the scutes and the sense of understated luxury create a perfect chromatic and stylistic harmony. Alternatively, shell cordovan offers durability and natural shine, while vegetable-tanned calf represents a minimalist and modern approach. All these materials enhance the nobility of the white gold case.

The strap is replaced using the spring bars positioned in the two case lugs. Use a dedicated removal tool—a spring bar tool—to lever and gently lift the spring, freeing the old strap. Insert the new 18mm strap by positioning one end first, then the other, ensuring that the springs click correctly into the lugs. Avoid forcing excessively to prevent damaging the case.

Absolutely yes. Any strap with an 18mm lug width is perfectly compatible with your Omega Constellation 123.57.35.20.55.005. Milanostraps offers a wide selection of 18mm straps in premium materials such as alligator, calf, shell cordovan and rubber, all ready for shipment and customizable in color, length and stitching thread.

A natural leather strap with vegetable tanning, if properly cared for, lasts an average of 3-5 years of daily use. Longevity depends on the intensity of use, exposure to sweat, water and climatic variations. Alligator or shell cordovan, being more resistant, can extend beyond 5 years. The patina that develops on the leather over time is an appreciated characteristic, not a defect. Casati Milano offers an 18-month warranty on bespoke straps.