Rubber straps remain one of the top-selling categories in the watch industry. They are durable, cost-effective and effortless to wear, but most come in a fixed length that forces a compromise on fit. We decided to change that.

Introducing the OPTO WATCH CO. Customizable Size FKM Curved. Crafted from high-grade FKM rubber, it lets you size the strap precisely to your wrist, with a contemporary tapered profile that keeps proportions balanced.

The curved end is what sets it apart. Its semi-integrated design sits flush against the case, so there is no gap between watch and strap. The result is a seamless fit, even on watches with short lugs. Two ridges run along the sides of the strap for a refined look, adding subtle detail to an otherwise clean, smooth finish.

A better fit changes everything.