Jaquet Droz · Grande Seconde

Strap for Grande Seconde 39 Sunstone / Red Gold

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

Lug width18 mm
Case diameter39 mm
ReferenceJ014013340
FamilyGrande Seconde
MovementJaquet Droz caliber 2663 Hours, Minutes, Small Seconds
CaseRed Gold

Spring bar

Swiss Standard universal spring bars

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

Straps for the Grande Seconde J014013340

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Grande Seconde J014013340, seen from the bench

The Jaquet Droz Grande Seconde 39 J014013340 features a 39.00 mm red gold case powered by the Jaquet Droz 2663 caliber, which displays hours, minutes, and small seconds. The watch showcases two concentric dials arranged in a vertical composition evoking the infinity symbol. With an 18 mm lug width, this timepiece exemplifies the brand's eighteenth-century aesthetic principles of symmetry and proportion, combining technical precision with classical elegance in haute horlogerie.

Frequently asked questions

What is the lug width of the Jaquet Droz Grande Seconde J014013340?

The Jaquet Droz Grande Seconde J014013340 features an 18-millimetre lug width. This measurement corresponds to a classical standard for watches with a 39-millimetre case and is specifically engineered to ensure balanced proportions on the wrist. All compatible straps must present exactly 18 millimetres in width at the lug attachment.

What is the best strap for the Jaquet Droz Grande Seconde in rose gold?

To enhance the rose gold of the J014013340, we recommend leather straps in warm tones – dark brown, cognac, hazel – which create a natural dialogue with the case colour. A sophisticated alternative is alligator in brown or cordovan, which amplifies the perception of luxury through the natural pattern of the skin. For a sportier approach, dark brown rubber maintains elegance without functional compromise.

How do I change the strap on the Jaquet Droz Grande Seconde J014013340?

Strap replacement requires the use of a specific tool – typically a spring bar tool – to unscrew or extract the fixing pins that connect the strap to the case. It is advisable to perform this operation on a protected surface, preferably at a specialised atelier such as Casati Milano, where the process is executed without risk of damage to the case or components. The procedure requires only a few minutes but demands precision.

Can I use an aftermarket strap on this Jaquet Droz model?

Yes, provided the strap is precisely 18 millimetres in width and manufactured with materials of equivalent quality to the timepiece. Milano Straps offers a curated selection of artisanal straps in leather, alligator, shell cordovan and rubber, all compatible with the J014013340 lug width. Choosing an aftermarket strap allows you to refresh the watch's aesthetics whilst maintaining its technical integrity and increasing daily wear value.

How long does a leather strap last on a watch like the Jaquet Droz Grande Seconde?

The durability of a leather strap depends on frequency of use, climatic conditions and tanning quality. A high-quality vegetable-tanned leather strap, such as those offered by Milano Straps, maintains structural integrity for 3-5 years with daily use and ordinary maintenance. Alligator and shell cordovan offer superior longevity, up to 7-10 years, thanks to skin density and resistance. The patina that develops over time does not constitute deterioration, but aesthetic enrichment.

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