Strap for Marine Torpilleur Stainless Steel / Blue Enamel / Alligator

The lug width of the Ulysse Nardin Marine 1183-310LE-3AE-175/1B is 21mm. This measurement is calculated by the distance between the inner shoulders of the two case lugs, excluding the external metal. This is an atypical measurement that requires specific watch straps, incompatible with universal 20mm or 22mm standards.

The best strap depends on your usage and personal style. For formal elegance, we recommend alligator with vegetable tanning in cognac tones or shell cordovan calf in burgundy, materials that develop natural patina over time. For sports and nautical use, a NATO in grey-blue cotton maintains the authenticity of the Marine. For professional environments, black rubber with stainless steel deployant offers versatility and durability. Your choice should complement the satinised stainless steel case.

Changing the strap requires a spring bar tool. Position the watch face-down, locate the small metal spring that secures the spring bar end to the case lugs, and gently push downward to release the bar itself. Repeat on both sides. To avoid damage to the satinised stainless steel case, we recommend delegating the operation to a professional or seeking guidance from the horological community.

Yes, any strap with a 21mm lug width is compatible with the Marine 1183-310LE-3AE-175/1B, provided that the internal width between the lugs matches exactly. Artisanal straps produced by specialised workshops guarantee the constructive precision required. Avoid universal straps at 20mm or 22mm, which will not provide the correct measurement and may damage the case lugs.

The lifespan of a leather strap depends on the tanning method and use. Quality alligator or calf with vegetable tanning resists 3-5 years of daily wear before requiring replacement, developing characteristic patina in the meantime. Prolonged exposure to water, perspiration and UV rays accelerates ageing. A heavy cotton NATO lasts 4-7 years. Natural rubber, 5-8 years. A well-maintained strap (dried after perspiration, protected from direct sunlight) significantly extends operational life.