Strap for Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Red Gold / Black

The lug width of reference 231.23.34.20.01.002 is 16mm. This space is measured between the case lugs where the spring bars of the strap are inserted. A 16mm strap will have an effective width slightly less (15.5-15.8mm) to fit correctly without excessive force during installation.

For the rose gold and steel version we recommend a natural alligator strap (neutral tones: tan, grey, black) which enhances the elegance of the case, or vegetable-tanned calf leather with natural patina for an introspective effect. Shell cordovan represents the pinnacle in terms of durability and patina development. For sports versatility, a silk-cotton NATO is a conscious and modern choice.

The strap is replaced by removing the spring bar using a dedicated tool (pin pusher). The spring bar has an internal spring: positioning the tool in the lateral hole, compress it and the spring bar will extract. Insert the new strap by aligning the hole in the leather with the spring bar, then press until it clicks into place. The operation requires care to avoid scratching the rose gold lugs.

Yes, any strap with 16mm lug width is compatible. We recommend artisanal quality leather (alligator, vegetable-tanned calf, shell cordovan) from specialized ateliers, which offer guarantees on construction and wear resistance. Always verify that the strap is not undersized (width < 15.5mm) to avoid excessive play.

An artisanal quality leather strap, if used daily, lasts on average 3-5 years. <a href="/pages/termine-glossario/concia-vegetale">Vegetable tanning</a> develops a patina that extends its aesthetic life. Shell cordovan is particularly long-lasting (7-10 years). Direct moisture and perspiration accelerate aging. Our straps include an 18-month warranty on the artisanal product.