Ulysse Nardin · Marine

Strap for Marine Torpilleur Stainless Steel / Blue / Fabric

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
Reference1183-310-3A/0A
FamilyMarine
MovementUlysse Nardin caliber UN-118 hours, minutes, small seconds | date | power reserve indicator, chronometer
Year2020
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 1183-310-3A/0A

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Marine 1183-310-3A/0A, seen from the bench

The Ulysse Nardin Marine features the automatic UN-118 caliber with chronometer certification and power reserve indicator. The movement offers hours, minutes, small seconds, and date functions. The lugs measure 21mm in width.

Frequently asked questions

What is the correct lug width for the Ulysse Nardin Marine 1183-310-3A/0A?

The correct lug width is 21mm. This specific measurement reflects the design proportions of the reference and should be measured between the outer edges of both attachment pins. An incorrect strap width would create aesthetic discontinuity and safety concerns regarding accidental detachment.

Which strap pairs best with the Marine 1183-310-3A/0A?

A quality alligator strap with satin finishing imparts authority without excess, whilst vegetable-tanned calf offers versatility with a noble patina. For sporty approaches, NATO straps in technical canvas or rubber ensure weather resistance. Your choice depends on predominant use and desired personal tone.

How does one change the strap on this watch without damaging the case?

Use a dedicated spring bar removal tool to extract the pins fastening the strap to the case lugs. Position the watch on a stable, well-lit surface and work with deliberate gentleness to avoid scratching the steel. Ensure the new strap clicks fully into place. If lacking expertise, consult a certified professional.

Can quality aftermarket straps be fitted to this Ulysse Nardin?

Absolutely. Artisanal 21mm straps meet the technical specifications of the reference without compromise. The critical factor is selecting suppliers guaranteeing compatible pins, coherent finishing, and durable materials. An aftermarket strap does not affect warranty if the swap is executed correctly.

What is the typical lifespan of a leather strap on this watch?

Longevity depends on tanning quality and usage patterns. A premium alligator or vegetable-tanned calf, worn daily, develops significant patina within 2–3 years and remains wearable for 5–7 years before replacement. Prolonged direct sunlight exposure, stagnant humidity, and perspiration accelerate deterioration. Regular maintenance—cleaning and drying—substantially extends lifespan.

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