Strap for Seamaster Planet Ocean 600M Co-Axial 42 Red Gold / Diamond / White / Alligator

The Omega Seamaster Planet Ocean with reference 232.58.42.21.04.001 has a lug width of 20mm. This standard is specific to the 42mm models in the Planet Ocean line and corresponds to the distance between the case lugs where the strap attaches. To verify, use a digital caliper positioned between the lateral holes where the strap is inserted.

For the Seamaster Planet Ocean 232.58.42.21.04.001, we recommend alligator leather in vegetable tanning in brown or black for an elegant-sporty look, or rubber or NATO if you want to emphasize its diving DNA. Alligator leather maintains rigid structure even under stress and develops patina over time, while rubber and NATO offer practicality and grip on wet wrists.

Obtain a spring bar tool or precision instrument. Position the watch on a soft surface with the caseback facing up. Insert the tool into the small hole beneath the lug, apply slight downward pressure to compress the internal spring, then slide the strap off from the opposite side. Repeat for the other pin and install the new strap by reversing the procedure.

All straps designed for 20mm lugs are compatible with the 232.58.42.21.04.001. Always verify the "20mm" specification with the manufacturer. Avoid undersized straps (18mm) or oversized straps (22mm) to prevent compromising the fit and security. MilanoStraps offers a range of customizable 20mm straps in leather, fabric, and rubber.

A high-quality artisanal alligator or calf leather strap, if properly maintained, lasts an average of 4-8 years on a dive watch like the 232.58.42.21.04.001. Frequent exposure to water and chlorine accelerates the natural wear of the leather. We recommend rotating with rubber or NATO straps for intensive diving use, and regular cleaning with a damp cloth to preserve the patina.