Strap for Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Grey / Bracelet

The lug width of the 231.10.30.20.06.001 is 18mm. This measurement must be taken with digital precision between the two metal pins that secure the strap: any deviation renders the strap incompatible with the case.

Vegetable-tanned alligator leather is the most authentic choice for this model: the natural grain and patina that develops over time harmonize beautifully with the brushed finish of the steel. For more formal occasions, solid-dyed calf leather in neutral tones (dark brown, blue) offers refined elegance. For superior longevity, shell cordovan develops a unique mirror patina over time.

Use a dedicated spring bar tool: position it on the crescent of the pin, gently push inward to deactivate the spring, then extract the pin from its seat. Repeat for the opposite lug. Insert the new strap by applying the same procedure in reverse. Ensure that the pins return to their original position with a gentle clicking sound that indicates proper seating.

Yes, any strap with an 18mm lug width is mechanically compatible. However, the choice of material and construction significantly influences both aesthetics and durability. Artisanal natural leather straps with <a href="/pages/termine-glossario/deployante">deployant clasp</a> better complement the proportion and sport-elegant identity of the 231.10.30.20.06.001.

A leather strap of quality construction (alligator, cordovan, solid-dyed calf) maintains structural integrity for 3-5 years of regular wear (5-6 days per week). Longevity depends on UV exposure, ambient humidity, and frequency of wear. Shell cordovan can last up to 7-8 years. Preventive maintenance (applying conditioning cream every 6-8 months) significantly extends strap life.