Strap for Seamaster Aqua Terra 150M Master Chronometer 34 Stainless Steel / Sedna Gold / Diamond / Pink - Ruby / Alligator

The lug width is 16 mm. It is measured by calculating the distance between the two lugs of the case. This dimension is specific to the 34 mm case and ensures balanced proportions between the compact diameter and the strap width.

Alligator leather represents the most natural choice to enhance the Sedna Gold: the grain of the leather dialogues with the alloy, creating aesthetic balance. Colours such as dark brown, dark tan, or cognac are ideal palettes. Alternatively, shell cordovan offers constructive rigidity that emphasises the case lines, while vegetable-tanned calf maintains an elegant texture that develops a patina over time.

The change requires the use of a specific tool: the spring bar tool. Position the tip of the tool in the small hole located under the lug, exert light pressure to release the retaining pin, then pull out the spring bar. Repeat on the other shoulder. Insert the new strap by aligning the holes with the lugs and press until the pin clicks into place. Verify the lock.

Yes, provided it is compatible with the 16 mm lug width. Aftermarket straps in leather, rubber, or fabric can enhance the Aqua Terra design with more expressive freedom compared to the original strap. Always verify that the lug widths are consistent and that the craftsmanship is artisanal, so as not to compromise the quality of the watch.

The lifespan depends on the material and the intensity of use. A good quality alligator strap lasts 3-5 years with regular daily wear. Shell cordovan, being more robust, can last 7-8 years. A vegetable-tanned calf dyed in vat, subject to natural patina, maintains structural integrity for 4-6 years. Care (drying after water contact, storage in the dark) significantly extends the lifespan.