Strap for Seamaster Planet Ocean 600M Co-Axial 45.5 Master Chronometer Chronograph Stainless Steel / White / Rubber / Michael Phelps

The lug width of this model is 22mm. This dimension is specific to the Planet Ocean generation equipped with Co-Axial chronograph and must be measured precisely between the case lugs: any variation beyond 0.2mm compromises correct strap installation and risks damaging the strap holes.

For a solid 45.5mm stainless steel case, we recommend vegetable-tanned Tuscan leather in navy blue or deep black in Horween chromexcel calf. For sophistication, slate grey alligator or deep brown shell cordovan develop extraordinary patina over time. The choice should balance the instrument character of the watch without compressing it visually.

The Seamaster Planet Ocean 215.32.46.51.04.001 is equipped with standard 22mm lugs. Use a spring bar tool to remove the spring-loaded pins, gently extract the original bracelet and insert the new strap ensuring the strap holes align perfectly with the case guides. Avoid hammers: controlled manual pressure is sufficient for correct seating.

All straps with 22mm lug width are compatible. On milanostraps.it you will find a complete collection of <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-22mm">22mm straps</a> customizable in color, initials and thread color, with fast shipping and 18-month warranty if entrusted to the Casati Milano atelier.

A premium vegetable-tanned leather strap on a 45.5mm watch, subject to diving and saltwater contact, has an average lifespan of 3-5 years with regular maintenance (regular cleaning, rapid drying after immersion). Shell cordovan and alligator extend life to 7-10 years. The Casati Milano atelier guarantees 18 months on aftermarket straps as well, with scheduled updates via WhatsApp.