Strap for Seamaster Aqua Terra 150m Master Co-Axial 38.5 Yellow Gold / Champagne / Bracelet

The <a href="/pages/termine-glossario/misura-ansa">lug width</a> is 19mm. This width is specific to the 38.5mm Seamaster Aqua Terra. Always verify the lug-to-lug measurement on the case before ordering an aftermarket strap, using a digital caliper.

For yellow gold, we recommend <a href="/pages/termine-glossario/alligatore">alligator</a> in dark brown or cognac tones, or finest calf leather with polished finish. Alligator enhances the warmth of gold, while smooth leather amplifies dial readability. We advise against rubber and NATO straps on precious metal cases: they would diminish the aesthetic investment.

The 38.5mm Aqua Terra features integrated <a href="/pages/termine-glossario/deployante">deployant clasp</a> or removable pins depending on production year. For pin models, precision spring bars and a dedicated tool (spring bar tool) are required. For integrated deployant clasp, detachment is quick-release. We recommend relying on a certified watchmaker or Casati Milano's personalized service.

Yes, provided the strap is designed for 19mm lug width. The <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-19mm">19mm compatible straps</a> from Milano Straps have been tested on this case. However, for a yellow gold Seamaster, we recommend custom workmanship at Casati Milano to ensure perfect tolerances and finishing consistent with the watch's quality.

A fine leather strap (such as <a href="/pages/termine-glossario/alligatore">alligator</a> or calf tanned with <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a>) lasts between 3 and 7 years depending on frequency of use, ambient humidity, and care applied. The yellow gold of the Aqua Terra would merit seasonal rotation with multiple straps. All Milano Straps straps come with an 18-month warranty.