Strap for Seamaster Aqua Terra 150M Co-Axial 43 GMT Stainless Steel / Black

The Omega Aqua Terra 231.13.43.22.01.001 has a lug width of 20mm. This width is the standard specification for this model and for most Seamaster and Aqua Terra models in 43mm size. Always verify the measurement with a caliper, positioning it between the lug pins from outer edge to outer edge.

The choice depends on use and context. For formal elegance, alligator with traditional tanning offers natural texture and softness. For daily versatility, calf leather with vegetable tanning develops a fascinating patina. For authentic water sports, FKM rubber straps guarantee grip even when wet. The Casati Milano atelier personalizes bespoke straps with exclusive leather selection.

The change requires a spring bar tool: position the tip in the lateral groove of the spring, apply slight pressure to compress the spring, extract the pin from its seat. Insert the new strap aligning the hole with the compressed spring, then release. If you do not have the tool or are unsure, the Casati Milano atelier performs the change during an appointment visit with full assistance.

Yes, absolutely. The <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-20mm">20mm compatible straps</a> from milanostraps.it are certified for this width and fit the 231.13.43.22.01.001 without any issues, provided the measurement is verified with precision. Many owners prefer artisanal straps for personalized aesthetics and leather quality.

Durability depends on leather quality and intensity of wear. An artisanal alligator or shell cordovan strap with quality vegetable tanning resists 3-4 years of regular wear, developing a fascinating patina. Calf leather typically lasts 2-3 years. Prolonged exposure to water, sweat and sunlight reduces longevity. The Casati Milano atelier provides an 18-month warranty on all straps, with the possibility of early replacement if deterioration is unusual.