Strap for Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Orange Numerals / Alligator

The lug width of the Seamaster Planet Ocean 37.50mm is 18mm. This is the space between the two lugs of the case where the strap is inserted. It is essential to verify this dimension before purchasing a replacement strap to ensure compatibility and correct tolerances.

The choice depends on use and aesthetic preferences. Vegetable-tanned alligator is ideal for formal contexts and develops a fascinating patina over time. Calf leather is versatile and develops character with aging. Heavy canvas NATO is perfect for those seeking practicality and sporty style. Natural rubber is the technical solution for those who frequently spend time in the water.

The strap is changed using a spring bar tool. Position the watch on a stable surface, locate the spring bar at the base of the lug, gently lift with the tool and release the spring. Repeat on the other side, remove the worn strap, insert the new one by aligning the holes with the spring bars and push until you hear a click.

Yes, provided they respect the 18mm lug width and present precise manufacturing tolerances. A quality artisanal strap is not only compatible, but enhances the watch because it is made with selected leather, refined stitching and rigorous quality control. Beware of low-end industrial productions: lateral play or forced insertion can wear the case lug seats.

The lifespan of an artisanal strap depends on the leather and usage. Vegetable-tanned alligator lasts on average 3–5 years in daily use, calf leather 2–4 years. Aging is not deterioration but the development of patina and character. Straps from renowned brands offer warranties of 18 to 24 months. Factors such as humidity, sweat and sun exposure accelerate the natural process of softening and color change.