Jaeger-LeCoultre · Reverso

Strap for Reverso One Duetto Jewellery Pink Gold / Silver

Takes 14 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width14 mm
Case diameter20 mm
ReferenceQ336247J (aka: 336247J)
FamilyReverso
MovementJaeger-LeCoultre caliber 844 Hours, Minutes
CasePink 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 Reverso Q336247J (aka: 336247J)

Selected for the 14 mm lug width · workshop selection

All 14 mm straps →

The Reverso Q336247J (aka: 336247J), seen from the bench

The Reverso One Duetto Jewellery Pink Gold / Silver (ref. Q336247J) is a reversible watch introduced by Jaeger-LeCoultre in 1931. It features a 20 mm pink gold case with a 14 mm lug width and is powered by the Jaeger-LeCoultre caliber 844 movement, displaying hours and minutes only. The watch combines Art Déco geometric proportions with refined elegance, and the pink gold develops a warm patina over time with regular wear.

Frequently asked questions

What is the lug width of the Jaeger-LeCoultre Reverso Q336247J?

The lug width of the Jaeger-LeCoultre Reverso Q336247J is precisely 14 millimetres. This dimension must be strictly adhered to: straps wider or narrower will not be compatible. Correct measurement is performed by positioning a ruler between the two attachment points on the case, without any margin for approximation. This dimensional precision is fundamental to prevent accidental strap detachment during daily wear.

Which strap material is most suitable for the Jaeger-LeCoultre Reverso Q336247J in rose gold?

For the Reverso Q336247J in rose gold, several materials are recommended depending on usage context. Alligator, with its regular squared pattern, accentuates the Art Deco geometry of the case and represents the most formal choice. Calf leather in vegetable tanning develops a patina over time parallel to that of rose gold, offering a more earthy and personalised character. Shell cordovan, with its distinctive grain and natural lustre, creates an impression of understated, timeless luxury. Finally, a technical FKM rubber remains ideal for summer activities without aesthetic compromise. The choice depends primarily on intended usage and personal colour preferences.

How do you change the strap on a Jaeger-LeCoultre Reverso Q336247J?

Changing the strap on the Reverso Q336247J is an operation requiring precision. First, you must have an appropriate tool, such as a strap tool, to avoid damaging the case. Identify the fixing axes (the pins that run between the lugs), remove the previous strap by gently sliding the axis out, and then insert the new strap in the same position. It is essential to work on a clean, soft surface (such as a felt mat) to avoid scratches. If you lack proficiency, it is advisable to entrust the operation to a professional, especially given the watch's value.

Is the Reverso Q336247J strap an aftermarket product compatible with other models?

Yes, a 14-millimetre strap width is compatible with any watch that presents the same lug width. However, aesthetic proportions vary depending on the case diameter and overall visual proportions. A 14-millimetre strap made for the Q336247J (with a 20-millimetre case) remains ideal for other models of similar size, but may appear disproportionate on watches with considerably larger cases. It is therefore advisable always to verify the actual lug width of the watch in question before purchasing an aftermarket strap.

How long does a leather strap last on a Jaeger-LeCoultre Reverso Q336247J?

The lifespan of a leather strap depends on multiple factors: the quality of the leather used, the tanning method (vegetable, chrome, or mixed), the degree of daily wear, exposure to moisture and perspiration, and the maintenance received. A strap in quality alligator or shell cordovan, with proper maintenance, can last 3–5 years of regular wear. Calf leather in vegetable tanning, being more absorbent, tends to patina more rapidly but wears slightly sooner, typically 2–4 years. The warranty offered by professional artisans (such as Casati Milano) of 18 months on manufacturing defects represents a reliability indicator; beyond this period, wear depends on personal usage. Preventative maintenance—drying the strap after moisture exposure, avoiding excessive creasing, occasionally treating it with natural waxes—significantly extends useful life.

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