Pequignet · Rue Royale

Strap for Rue Royale Moonphase Stainless Steel / Silver Guilloche / Brown 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
Reference9010437CG
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 9010437CG

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Rue Royale 9010437CG, seen from the bench

The Pequignet Rue Royale 9010437CG is a contemporary French timepiece featuring a Calibre Royal DDM movement with hours, minutes, small seconds, date, day indication, and moonphase. The 42mm stainless steel case pairs with an 18mm lug width, designed for medium to large wrists. The brushed steel case develops a natural patina over time, enhanced by premium leather straps that provide tactile contrast.

Frequently asked questions

What is the lug width of the Pequignet Rue Royale 9010437CG?

The Pequignet Rue Royale 9010437CG features a lug width of 18mm. This is the distance between the two pins that attach the strap to the case. An 18mm lug width is typical of classical French watchmaking and allows for straps of generous thickness whilst maintaining balanced proportions on the 42mm case.

Which strap is best suited for the Pequignet Rue Royale 9010437CG?

For the 9010437CG, an alligator strap with vegetable tanning offers the highest aesthetic balance, amplifying the refined character of the stainless steel case. Alternatively, a high-quality vegetable-tanned calf develops a natural patina over time. For a more sporty approach, a robust canvas NATO strap or dark FKM rubber maintains proportion without functional compromise.

How do you change the strap on the Pequignet Rue Royale 9010437CG?

The Pequignet Rue Royale 9010437CG uses straight pins without quick-release mechanism. To replace the strap: (1) remove the pins using a spring bar tool (small implement with curved end), (2) gently extract the pins from their housings in the case, (3) insert the new strap aligning the side holes with the pins, (4) reinsert the pins until they click into place. Proceed with caution to avoid scratching the case.

Is an aftermarket quality strap compatible with the Pequignet Rue Royale 9010437CG?

Yes, any strap with an 18mm lug width is fully compatible with the 9010437CG. Artisanal aftermarket straps often offer superior build quality compared to the original integrated bracelet, allowing for personalised material selection (alligator, shell cordovan, vegetable-tanned calf) and chromatic matching. Compatibility is guaranteed by lug width standardisation.

What is the average lifespan of a leather strap on a Pequignet Rue Royale?

A high-quality leather strap (alligator, shell cordovan, vegetable-tanned calf) lasts an average of 3–7 years on a daily-worn watch, depending on climate, humidity and cleaning frequency. Vegetable tanning develops a natural patina that preserves the leather structure over time. To extend lifespan, avoid prolonged exposure to high humidity and apply leather conditioner every 6–12 months. Canvas NATO straps last longer (5–10 years), whilst FKM rubber lasts 2–4 years before losing elasticity.

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