Strap for Seamaster Aqua Terra 150M Co-Axial 36.2 Stainless Steel / Diamond / MOP / Bracelet

The lug width of the 2509.75.00 model is 20mm. This dimension is specific to this reference and must be strictly observed to avoid play or incompatibility. Measure the distance between the lug pins to confirm before purchasing an aftermarket strap.

For your Aqua Terra we recommend natural alligator leather (regular grain, chestnut or honey brown), shell cordovan for those who appreciate aged patina, or vegetable-tanned calf for everyday wear. For summer contexts, a navy silk-cotton NATO is excellent. Avoid pure black: the Teak dial deserves chromatic warmth.

Gently remove the original strap using a spring bar tool (small steel lever), pushing the lateral pins downward. Insert the new 20mm strap into the same holes, ensuring the pins return to their seat with a crisp click. If your Aqua Terra has the integrated original bracelet, entrust it to a qualified watchmaker to avoid compromising the case proportions.

Yes, provided they are certified for 20mm lug width. Quality aftermarket straps (alligator, shell cordovan, calf) do not affect Omega warranty and offer superior aesthetic versatility compared to the integrated bracelet. Choose manufacturers with experience on vintage Omega models to avoid finishing errors.

Durability depends on the material and usage. Fine alligator lasts 4-6 years with daily wear; shell cordovan 5-8 years thanks to natural grain structure; vegetable-tanned calf 3-4 years in urban conditions, less if exposed to constant humidity. Rotating between straps extends overall lifespan and keeps your Aqua Terra always looking fresh aesthetically.