Strap for Seamaster Aqua Terra 150M Master Co-Axial 30 Moonshine Gold - Diamond / MOP - Diamond / Bracelet

The lug width of the Omega Aqua Terra 220.55.30.20.55.001 is 14mm. This is a non-standard size; it is important to verify it precisely when purchasing an aftermarket strap, as even a 0.5mm deviation will compromise the fit to the case.

It depends on the intended use. For formal elegance, we recommend vegetable-tanned alligator in cognac tones or bordeaux calf. For everyday versatility, brown shell cordovan with steel deployante clasp. For sports contexts, NATO fabric or vulcanized rubber maintains the lightness of the 30mm case.

The strap is changed by removing the spring bars from the lugs: insert a spring bar tool into the hole beneath the spring, push laterally to release it, remove the old strap and insert the new one. The 14mm size requires care to avoid damaging the lugs.

No, the 14mm lug width is mandatory. A 14.5mm or larger strap will leave unacceptable visible gaps; a 13.5mm or smaller will not fit into the lugs without risk of damage. Milano Straps manufactures 14mm straps precisely calibrated for this model.

A quality leather strap (alligator, calf, shell cordovan) lasts 3–5 years in daily use, with periodic maintenance (protective treatment every 6–12 months). Vegetable-tanned leather develops patina over time. A NATO fabric or rubber strap has a longer lifespan of 5–10 years, depending on intensity of use and maintenance.