Strap for Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 16 Sapphires

The lug width of the Seamaster Planet Ocean 2905.50.38 is exactly 22mm. This measurement represents the horizontal distance between the two metal lugs of the case and is essential for selecting compatible straps. To verify it with precision, use a digital caliper positioned perpendicular to the case axis. Any strap other than 22mm will not fit correctly to the lugs, causing structural play or dangerous forcing.

The choice depends on the context of use and aesthetic preference. For formal occasions or galas, dark brown or black alligator is the most elegant solution, thanks to the geometric texture that complements white gold and mother-of-pearl. For a balance between elegance and everyday practicality, vegetable-tanned Tuscan calf offers a natural patina that evolves over time. For sports or diving contexts, salt water-resistant rubber is practical and appropriate. Japanese shell cordovan represents a refined meeting point between technical solidity and constructive luxury.

Changing the strap requires the use of a spring bar remover (a small steel tool with two hook tips). Position the watch with the lug facing upward, insert the tool tip into the small lateral hole of the lug to compress the internal spring, then gently extract the metal bar. Repeat the procedure from the other side. Next, align the holes of the new strap with the lugs and reinsert the bar. If you are not completely confident, entrust the operation to an authorized service center to avoid damage to the case.

Yes, provided the strap is specifically built for 22mm lugs. High-quality aftermarket straps (such as those made from alligator, vegetable-tanned calf, or shell cordovan) are not only completely compatible, but often offer superior aesthetic customization and construction quality compared to original OEM straps. It is important to verify that the strap is made with correct stitching techniques and suitable materials, to ensure durability and lasting comfort over time.

The lifespan of a leather strap depends on the frequency of wear, the type of leather, and environmental conditions. A high-quality artisanal alligator or calf strap, worn occasionally (2-3 times a week), maintains structural integrity between 5 and 8 years. With daily wear, deterioration accelerates to 3-4 years. Frequent exposure to salt moisture (such as near the sea) reduces longevity. Shell cordovan, thanks to superior fiber density, extends the lifespan up to 10 years under normal conditions. Regular maintenance (gentle cleaning, annual conditioning) significantly prolongs the strap's useful life.