Strap for Marine Torpilleur Stainless Steel / White / Alligator

The Ulysse Nardin Marine 1183-310/40 features a 21mm lug width. This specification is measured from the inner shoulder of one lug to the opposite side, excluding the thickness of the spring bar. A 21mm strap fits perfectly to the case, ensuring aesthetic symmetry and correct buckle or deployant functionality.

Choice depends on intended use and aesthetic preference. For formal elegance, we recommend alligator leather in havana or cognac tone, creating sophisticated contrast with the blue dial. For daily formal wear, vegetable-tanned calf develops distinctive patina over time. For dynamic or aquatic environments, a heavy-canvas NATO or technical elastomer enhances the watch's nautical vocation. Each material narrates a different story of the same case.

To change the strap, use a dedicated spring bar remover tool to access the baionette springs positioned at the lug extremities. Gently press the remover against the spring, retracting it from its seat, then extract the lug from the case. Insert the new strap—which must be 21mm—aligning the saddle holes with the metal pins of the case, then verify that the spring is fully engaged. The operation requires patience; if uncertain, contact an authorised service centre.

Yes, any 21mm strap is compatible with the Ulysse Nardin Marine 1183-310/40. High-quality artisanal aftermarket straps guarantee materials and finishes equivalent to or superior to the original strap. Always verify that the lug width corresponds exactly to 21mm, whether for leather, elastomer, or technical textile straps. On milanostraps.it you will find a selection of 21mm straps tested for compatibility.

A high-quality artisanal leather strap (alligator, vegetable-tanned calf) typically lasts 3–5 years if worn daily, up to 7–10 years if used occasionally. Lifespan depends on sun exposure, humidity, frequency of wear, and maintenance. Wear is natural and contributes to aesthetic character; visible leather deterioration does not indicate manufacturing defect but evolutionary aging. To prolong life, apply natural balms every 6–12 months and store the strap in dry environments. Technical elastomer, by contrast, resists for 5–7 years whilst maintaining intact mechanical performance.