Strap for Seamaster Planet Ocean 600M Co-Axial 39.5 Master Chronometer Stainless Steel / Sedna Gold / White / Alligator

The lug width of the Seamaster Planet Ocean 215.23.40.20.04.001 is 19mm. This standard measurement allows the installation of any aftermarket strap with 19mm attachments. To verify it, use a digital caliper measuring the distance between the spring bars positioned perpendicularly to the longitudinal axis of the case. A tolerance of ±0.5mm is acceptable within Omega's manufacturing variations.

For this hybrid configuration in Sedna Gold and steel, vegetable-tanned alligator represents the most coherent aesthetic choice: the cayman grain dialogues with the ceramic geometry, while the aging of the leather creates a golden patina that complements the proprietary alloy. For versatility and frequent use, supreme quality calf leather offers visual uniformity. For active marine environments, FKM rubber guarantees dimensional stability in salt water.

The Seamaster Planet Ocean 215.23.40.20.04.001 is fitted with spring bars in the horizontal housings of the case. Use a specific spring bar tool to compress the pin and extract the ring from its seat. Insert the new strap by aligning the holes with the spring bars, then compress the tool again to lock the ring into position. Verify smooth rotation of the strap around the lug without excessive longitudinal play.

Yes, the 215.23.40.20.04.001 is fully compatible with 19mm aftermarket straps. Milanostraps.it offers customizable straps in alligator, cordovan, calf and technical rubber, all with attachments specific to this size. The straps are ready to ship and customizable in length, initials and stitching thread to fit your wrist perfectly.

A high-quality vegetable-tanned leather strap (alligator, cordovan, Hermès calf) maintains functionality and aesthetics between 18 and 36 months with regular use on a dive watch like the Planet Ocean. Lifespan depends on exposure to moisture, frequency of strap rotation, and leather maintenance (hydration, UVA protection). Casati Milano straps benefit from an 18-month structural warranty and support for extending useful life through regeneration.