Strap for Seamaster Planet Ocean 600M Co-Axial 42 Mécanique 24 Sapphires / Short Strap

The lug width of the 2912.50.48 model is 20mm. This measurement is determined by the geometry of the 42mm case and Omega's constructive proportion. Always verify the distance between the two horizontal lugs before ordering a compatible strap.

For this white gold model with mother-of-pearl dial, natural alligator (vegetable tanning) creates the most coherent aesthetic dialogue: the crocodile grain reflects light without competing with gold, and develops a unique patina over time. Shell cordovan is a more formal alternative, vegetable-tanned calf offers daily versatility, and vulcanized rubber is ideal for frequent diving.

Strap replacement requires a precision tool (spring bar tool) to compress the internal elastic pin and extract the old strap from the lugs. Position the new 20mm strap horizontally, compress the spring, and insert the pin. If you do not own the tool, Casati Milano offers the strap change service by appointment at the atelier.

Yes, as long as the lug width is exactly 20mm. Compatible artisanal quality straps offer aesthetic versatility and often surpass originals in comfort. Verify that the buckle or deployant is proportionate to the case diameter (42mm) to maintain visual balance.

A quality alligator or shell cordovan strap lasts 4-6 years with daily use, developing a natural patina over time. Durability depends on exposure to moisture, sweat, and sunlight. Vegetable tanning tends to age better than chrome tanning, creating aesthetic uniqueness. Casati Milano guarantees 18 months on custom straps and recommends occasional maintenance with specific creams.