Strap for Seamaster Aqua Terra 150M Quartz 30 Stainless Steel / Diamond / Grey / Bracelet

The Omega Aqua Terra 231.15.30.61.56.001 has a lug width of exactly 18 millimetres. This width is calibrated by Omega to maintain the geometric proportions of the 30mm case. Measure the lug width by positioning a digital calliper perpendicular to the two strap attachment holes: the value must be precise at 18mm.

The ideal material is alligator or crocodile in fine grain, as the granular texture visually complements the teak deck dial. Vegetable-tanned calf leather in dark brown or black tones is also excellent for a more classical character. For sporty interpretations, hydrophobic rubber maintains elegance without compromising water functionality. On milanostraps.it you will find all these materials customisable for 18mm lug widths.

The Aqua Terra is fitted with straight lugs (not spiral lugs). Remove the integrated bracelet by acting on the safety pin with a dedicated tool, then insert the new strap through the lateral holes of the case. If you have never performed this operation, we recommend having it done at the Casati Milano atelier by appointment, where lug tolerances and finishing will be checked.

All straps with an 18mm lug width are compatible with the Omega Aqua Terra 231.15.30.61.56.001. Always verify that the strap has exactly 18 millimetres at the lug width. milanostraps.it offers a dedicated selection of 18mm straps built to artisanal luxury standards, with compatibility certification.

A premium leather strap, in alligator or vegetable-tanned calf with proper maintenance, typically lasts 3–5 years with daily use. The actual time depends on frequency of use, sun exposure, sweat and humidity. milanostraps.it straps, constructed in premium leather, maintain structural integrity for at least 18 months under normal conditions, with conditioning treatments that extend useful life. The patina that develops over time represents a prized characteristic, not a defect.