Strap for Constellation Co-Axial 38 Double Eagle Stainless Steel / Yellow Gold / Silver

The lug width of the Omega Constellation 1203.30.00 is 16 mm. This measurement represents the distance between the inner attachments of the case. It is essential to measure correctly with a digital caliper positioned from inner edge to inner edge, as even minimal tolerances will compromise proper strap installation.

The Constellation has historically been paired with alligator leather straps, which offer regular grain and texture that enhance the case without aesthetic competition. Shell cordovan is a refined alternative for those desiring a natural patina that develops over time. The choice depends on use: formal suggests black alligator, daily wear suggests brown or cognac, sporty suggests grey or blue NATO.

The Constellation 1203.30.00 uses removable 16 mm spring bars. With a spring bar tool, gently lift the pin from the first side, then from the other. Position the new strap, align it with the attachment holes, and reinsert the pins until you hear the locking click. Do not force: if the pin does not enter easily, verify that the lug width is exactly 16 mm.

Yes, any strap with a 16 mm lug width is compatible with the Constellation 1203.30.00. However, to respect the integrated case architecture and original Omega proportions, we recommend relying on high-quality artisanal straps made with premium materials such as alligator, shell cordovan, or vegetable-tanned calf leather.

A premium leather strap, with vegetable tanning or top-grade alligator, has an average lifespan of 4-6 years with moderate use (3-4 times per week). Factors such as humidity, sun exposure, frequency of wear, and routine maintenance significantly affect longevity. The standard 18-month warranty covers manufacturing defects; the natural aging of leather is an expected and desirable evolution.