Strap for Seamaster Planet Ocean 600M Co-Axial 39.5 Master Chronometer Deep Brown / Brown / Strap

The Omega Seamaster Planet Ocean 215.62.40.20.13.001 has a lug width of 19.00 mm. This specific width was designed to maintain the correct optical proportions between the case diameter (39.50 mm) and the lateral lugs. It is important to measure precisely using a digital caliper, positioning the tips between the inner pins of the top lugs, as even a 1 mm difference can cause unwanted friction on the strap.

For the 215.62.40.20.13.001, black or dark brown alligator represents the noblest choice from an aesthetic and historical perspective: the regular medium grain texture creates visual continuity with the ceramic bezel. Calf leather is ideal if you desire a patina that matures over time. Dark rubber represents the best solution for authentic nautical use, while heavy cotton NATO communicates a sporty attitude while maintaining elegance. Natural vegetable tanning, finally, develops extraordinary dark hues that dialogue magnificently with the reflections of Sedna Gold.

Changing the strap on this model requires delicacy, as the Sedna Gold case is susceptible to scratching. Proceed as follows: position the watch with the lug side facing you; use a quality sprung bar tool, inserting the thin tip under the lug pin; apply gentle and consistent pressure to avoid slips that damage the case surface; once the pin is freed, grasp the previous strap and pull it downward with care. For installation of the new 19 mm strap, ensure it flows without friction through the lugs before definitively securing the pins.

Yes, provided it is custom-made with a lug width of exactly 19.00 mm. Standard commercial straps (20-20.5 mm) will cause permanent friction on the lugs, damaging the Sedna Gold over time. For this reason, we recommend entrusting specialist artisans who measure directly on the case and create the strap with precise tolerances. A personalized Sedna Gold or stainless steel deployant ensures perfect mechanical compatibility and maintains aesthetic coherence with the case.

The lifespan of a leather strap depends on usage, material quality, and care: superior alligator or calf leather, worn regularly but not daily, maintains structural integrity for 3-5 years. If exposed to constant moisture (frequent swimming, marine environments), the lifespan drops to 1-2 years. High-density synthetic rubber offers better longevity in humid environments, lasting 4-6 years without signs of degradation. To preserve a leather strap, avoid prolonged immersion, dry it immediately after saltwater contact, and periodically apply natural wax. Mindful maintenance extends the life of any strap by an additional 1-2 years.