Jaeger-LeCoultre · Reverso

Strap for Reverso Tribute Saam Comes to Alburz

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter27 mm
ReferenceQ39334S3 (aka: 39334S3)
FamilyReverso
MovementJaeger-LeCoultre caliber 822A/2 hours, minutes
Year2025
CaseWhite 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 Q39334S3 (aka: 39334S3)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Reverso Q39334S3 (aka: 39334S3), seen from the bench

The Jaeger-LeCoultre Reverso Q39334S3 is a ladies' watch with a reversible case design originating from the 1931 concept. The 27.40mm white gold case houses the caliber 822A/2 manual-winding movement, beating at 21,600 oscillations per minute. Strap width is 20mm, a dimension crucial for aftermarket strap compatibility and determined by Jaeger-LeCoultre's proportional calculations to maintain visual balance.

Frequently asked questions

What is the lug width of the Jaeger-LeCoultre Reverso Q39334S3?

The lug width of the Reverso Q39334S3 is precisely 20mm. This measurement represents the external distance between the two lugs of the case that accommodate straps. It is critical to verify this with a digital calliper before ordering an aftermarket strap, as even a 1mm difference causes friction on the lugs or excessive play. All Casati Milano straps for this model are manufactured to 20mm specifications.

Which strap is most recommended for the Jaeger-LeCoultre Reverso Q39334S3?

Dark brown or honey alligator is the most aesthetically coherent choice: the natural directional grain of alligatorids perfectly complements the rectangular geometry of the case. A sophisticated alternative is vegetable-tanned calf leather, which develops natural patina over time. For daily versatility, a cotton-nylon NATO in grey or navy blue is exceptionally practical. Atelier Casati Milano recommends an in-person consultation to physically handle materials and visualise the pairings.

How do I change the strap on the Jaeger-LeCoultre Reverso Q39334S3?

Strap replacement requires a spring bar tool: insert the tip of the tool into the small lateral holes of each lug to compress the internal spring, releasing the old strap. Then insert the new 20mm strap onto the lugs, pressing until you hear the spring click into position. Do not apply excessive force to avoid damage. If you are uncertain, Casati Milano offers this service free of charge during an in-atelier consultation.

Which aftermarket strap is compatible with the Reverso Q39334S3?

Any strap with a 20mm lug width is compatible with the Q39334S3. On milanostraps.it you will find a dedicated collection of artisanal 20mm straps in various materials (alligator, calf, shell cordovan, nato, rubber). Casati Milano also produces bespoke commissions: you can select leather, colour, buckle and strap width during an in-atelier consultation.

How long does a leather strap last on a Jaeger-LeCoultre Reverso Q39334S3?

Longevity depends on material and usage. A good-quality alligator or vegetable-tanned calf strap lasts 3–5 years with daily wear, up to 8–10 years if rotated with other straps. Vegetable tanning develops fascinating patina that extends aesthetic life. Casati Milano straps are covered by an 18-month warranty against manufacturing defects. After the first year, minor wear near the buckle is normal. Professional reconditioning by specialist artisans (re-dyeing, re-stitching) can extend life by a further 2–3 years.

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