Pequignet · Rue Royale

Strap for Rue Royale Moonphase Stainless Steel / Silver / Black Alligator

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter42 mm
Reference9010433CN
FamilyRue Royale
MovementPequignet caliber Royal DDM hours, minutes, small seconds | big date, day | moonphase | power reserve indicator
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 Rue Royale 9010433CN

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Rue Royale 9010433CN, seen from the bench

The Pequignet Rue Royale 9010433CN features a 42mm stainless steel case housing the Pequignet Calibre Royal DDM movement, visible through a sapphire caseback. The movement displays hours, minutes, small seconds, large date, day indicator, moonphase, and power reserve indicator with 42-hour autonomy. The lugs measure 18mm and accept straps of moderate thickness while maintaining the watch's refined proportions.

Frequently asked questions

What is the lug width of the Pequignet Rue Royale 9010433CN?

The lug width of the Pequignet Rue Royale 9010433CN is 18mm. This dimension must be verified by measuring the distance between the two inner shoulders of the spring bar using a digital calliper. It is crucial to confirm the measurement before ordering a strap, as incompatibility would result in impossibility of installation.

Which strap is best for the Pequignet Rue Royale 9010433CN?

For the Rue Royale 9010433CN, the ideal strap is fine-grained alligator (dark brown, cognac or black) or vegetable-tanned shell cordovan, as these materials enhance the sober elegance of the slate-blue dial and the brushed finish of the case. Alternatively, black calf grain with cream stitching represents the highest formal option. Choice depends on intended use: daily formal wear for alligator, special occasions for cordovan, sporty versatility for canvas NATO.

How do you change the strap on the Pequignet Rue Royale 9010433CN?

Strap replacement involves removing the spring bars at the case extremities. Use a spring bar tool to press the ball detent and slide the spring bar outward. Once the spring bar is extracted, the previous strap can be removed. Insert the new strap into the seat and slide the spring bar from inside, verifying it is completely locked. The operation requires care to avoid scratching the case.

Can you fit an aftermarket strap with a different lug width on the watch?

No. A strap with a different lug width (for example 19mm or 20mm) will not be compatible with the Pequignet Rue Royale 9010433CN, which strictly requires 18mm. The lug will not adhere correctly to the case, compromising both aesthetics and wearing security. Always verify the lug width before purchase.

What is the lifespan of a leather strap for the Rue Royale 9010433CN?

A handcrafted leather strap (alligator, cordovan or calf) typically lasts 3–5 years with daily use, provided it undergoes regular maintenance: avoid excessive moisture and prolonged sun exposure, clean with a damp cloth and apply conserving balms every 6–8 months. Lifespan varies depending on frequency of use: an occasional-wear strap may last 10 years. FKM rubber offers superior durability (5–7 years) but less aesthetic patina.

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