Strap for Rolex Sea-Dweller 16660 Comex

The lug width of the Rolex Sea-Dweller 16660 COMEX is 20 mm, a specific characteristic of this model. To verify, measure the distance between the two lugs on the case: you will find exactly 20 mm. This measurement is fundamental when purchasing a compatible strap, as it ensures correct attachment to the case lugs without adapters or case modifications. No strap with a different width (18 mm, 22 mm) can be fitted without invasive intervention.

Alligator leather with vegetable tanning is the most natural choice for the 16660 COMEX, combining sophisticated aesthetics with a decade-long durability. Shell cordovan represents absolute excellence for those seeking natural patina and extraordinary longevity. High-quality calf leather offers fine grain and evident craftsmanship. Natural rubber remains true to the professional diving DNA of the watch. Each choice reflects a different aspect of the COMEX identity: your decision depends on intended use and personal aesthetic preference.

Changing the strap on the Sea-Dweller 16660 COMEX requires a specific tool (spring bar removal tool) to compress and release the retention springs (spring bars) that anchor the strap to the case lugs. Position the tool in the lateral slot of the spring bar, press gently toward the centre, then remove the old strap. Install the new 20 mm strap by aligning the spring bar hole and ensuring the spring clicks into position. If inexperienced, entrust the operation to a professional watchmaker to avoid scratching the case.

Yes, any strap with a 20 mm lug width is technically compatible with the 16660 COMEX, provided the spring bars are of correct length and appropriate quality. However, to achieve an aesthetic and qualitative result consistent with the historical value of the watch, it is advisable to choose artisanal straps in noble leather or natural rubber, avoiding poor-quality synthetic materials or industrial finishes. Custom straps from Casati Milano guarantee certified compatibility and finishing touches that respect the case details.

A noble leather strap (alligator, calf, shell cordovan) with vegetable tanning has an average lifespan of 8-12 years when properly maintained: avoid prolonged contact with saltwater, clean periodically with a damp cloth, apply natural balms every 6 months. Alligator and cordovan are particularly resistant and can last 15-20 years. Natural rubber typically lasts 5-7 years. Precise lifespan depends on frequency of use, climate and tanning type. Casati Milano straps include an 18-month warranty on manufacturing defects and personalised care instructions.