Ulysse Nardin · Marine

Strap for Marine Torpilleur Stainless Steel / Panda / Alligator

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter42 mm
Reference1183-310LE-0A-175/1A
FamilyMarine
MovementUlysse Nardin caliber UN-118 hours, minutes, small seconds | date | power reserve indicator, chronometer
Year2021
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Marine 1183-310LE-0A-175/1A

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Marine 1183-310LE-0A-175/1A, seen from the bench

The Ulysse Nardin Marine features the UN-118 caliber with chronometer certification and power reserve indicator. The movement offers hours, minutes, small seconds, and date functions. The watch has 21mm lugs and is part of the Swiss manufacturer's marine collection.

Frequently asked questions

What is the lug width of the Ulysse Nardin Marine 1183-310LE-0A-175/1A?

The lug width is 21mm. This measurement is determined by the internal distance between the case lugs and represents the essential parameter for selecting a compatible strap. Correct measurement requires a calliper inserted between the internal metal supports of the case, acquiring the precise linear distance. An undersized strap (20mm) would result in instability; an oversized one (22mm) would not fit into the housings.

Which strap is most suitable for the Ulysse Nardin Marine 1183-310LE-0A-175/1A?

For this stainless steel marine chronograph, we recommend an alligator strap with matte finish in dark brown tone or vegetable-tanned calf leather aged in navy blue. These materials dialogue with the functional character of the case without adding unnecessary ornamentation. For saltwater applications, a rubber tread in black or anthracite grey with non-slip texture offers durability and grip. Military NATO straps represent a historically coherent alternative aligned with the timepiece's nautical vocation.

How do I change the strap on my Ulysse Nardin Marine 1183-310LE-0A-175/1A?

Strap replacement requires a simple tool: a spring bar tool or thin pointed instrument. Position the watch with the lug side facing upward, insert the tool tip into the small lateral notch of the metal strap, then gently push downward to release the pressurised spring. Once the strap is extracted, slide the old strap outward. Reverse the process to install the new strap, ensuring the spring bar is fully inserted into both lugs and the spring is uniformly tensioned.

Is a 21mm aftermarket strap compatible with the Ulysse Nardin Marine 1183-310LE-0A-175/1A?

Yes, any artisanal or industrial strap of 21mm lug width is mechanically compatible with this model. Compatibility does not guarantee aesthetic coherence: the proportion between case diameter (42mm) and strap width must maintain specific visual balance. Premium straps in alligator, calf or specialised rubber offer superior construction quality and material to generic factory straps, with robust stitching and finishes that resist ageing.

How long does a leather strap last on an Ulysse Nardin Marine 1183-310LE-0A-175/1A?

A premium vegetable-tanned calf or alligator leather strap typically lasts 3-5 years with moderate daily wear, depending on sun exposure, saltwater humidity, perspiration and maintenance. Freshwater does not significantly damage leather, whilst chlorine and salt accelerate ageing. The natural patina that develops over time represents an aesthetic merit, not a defect. To extend durability, we recommend rotating multiple straps and regularly cleaning the leather with a damp cloth. A rubber or NATO strap has superior longevity (5-7 years) in extreme marine environments.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only