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

The lug width of the Seamaster Planet Ocean 215.63.40.20.13.001 is 19mm. This measurement determines exactly the width of the compatible strap. To verify it, use a digital caliper measuring it inside the case lug slot, where the strap runs, at the lugs welded to the case sides.

For the Seamaster Planet Ocean 215.63.40.20.13.001 in Sedna Gold, black or cognac alligator represents the conservative and sophisticated choice, reflecting the technical nature of the watch. Alternatively, a vegetable-tanned calf leather in caramel or warm chestnut tones offers a modern aesthetic and ages visibly with character. For frequent marine use, shell cordovan guarantees superior moisture resistance and an almost lacquered patina over time.

The strap is changed by removing the spring bars located at the end of the lugs, where the strap attaches. With a dedicated tool (spring bar tool), press the spring bar pin to release it, remove the old strap and insert the new one. The process requires precision: if you are not experienced, contact a qualified watchmaker or reach out to Casati Milano atelier for assistance via WhatsApp.

Yes, any strap with a 19mm lug width is mechanically compatible with the 215.63.40.20.13.001. However, aesthetic and qualitative compatibility depends on the material, finish and thickness of the strap itself. Handcrafted straps with vegetable tanning, alligator or shell cordovan ensure construction quality in line with the precision of your Omega.

The lifespan of a leather strap depends on the material, conditions of use and maintenance. A vegetable-tanned alligator strap with natural tanning lasts on average 5-8 years with moderate daily use. Shell cordovan, thanks to maximum cellular density, can last 8-12 years, especially if not subjected to frequent bathing. A rubber or NATO strap has indefinite durability, but degrades more slowly. Casati Milano atelier guarantees 18 months on handcrafted straps, covering manufacturing defects.