Jaeger-LeCoultre · Master Ultra Thin

Strap for Master Ultra Thin Moon Pink Gold - Diamond / Eggshell / Alligator

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter39 mm
Reference1362502 (aka: Q1362502)
FamilyMaster Ultra Thin
MovementJaeger-LeCoultre caliber 925AA Hours, Minutes, Seconds | Moonphase
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 Master Ultra Thin 1362502 (aka: Q1362502)

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Master Ultra Thin 1362502 (aka: Q1362502), seen from the bench

The Jaeger-LeCoultre Master Ultra Thin Q1362502 is a 39mm rose gold case watch with a thickness of just 4.1mm, embodying the brand's pursuit of refined proportions and formal minimalism. Powered by the in-house caliber 925AA manual movement, it features a moon phase complication, 28,800 vph, and a 68-hour power reserve. The 21mm lug width accommodates the ultra-thin case geometry, while sapphire crystal with anti-reflective treatment and 50m water resistance complete this classically-proportioned chronometer.

Frequently asked questions

What is the lug width of the Jaeger-LeCoultre Master Ultra Thin 1362502?

The lug width of the Jaeger-LeCoultre Master Ultra Thin 1362502 is 21 millimetres. This non-standard lug width reflects the balanced proportions of the ultra-thin case and represents a precise constructive space dictated by the geometry of the 39-millimetre case diameter. To verify strap compatibility, measure the internal distance between the lug shoulders using a digital calliper.

Which strap pairs best with the Jaeger-LeCoultre Master Ultra Thin 1362502?

For the 1362502, black or dark brown alligator represents the most coherent choice: the natural grain pattern dialogues elegantly with the faceted architecture of the rose gold case. Alternatively, vegetable-tanned calf leather offers suppleness and natural ageing patina, whilst shell cordovan ensures exceptional longevity (10–15 years of daily wear). The selection depends upon usage context and personal tactile preference.

How do I change the strap on a Jaeger-LeCoultre Master Ultra Thin?

Strap replacement requires a specialised tool: the spring bar tool. Insert the flat tip of the tool beneath the pin (spring bar) and gently press to compress the internal spring, then extract the pin from the case. Repeat the procedure on the opposite lug. To install the new strap, insert the pin into the new strap's hole and guide it into the case seats until it locks. We recommend entrusting this operation to a professional to avoid damage to the crystal and case finishing.

Can I use a compatible aftermarket strap on my 1362502?

Yes. Any strap with a lug width of 21 millimetres is compatible with the Jaeger-LeCoultre Master Ultra Thin 1362502. milanostraps.it artisanal straps, crafted in alligator, calf, shell cordovan and rubber with stainless steel or rose gold deployante, guarantee construction quality equivalent to Jaeger-LeCoultre original straps, with the additional advantage of customisation and direct consultation during manufacture.

How long does a leather strap last on a watch like the 1362502?

The longevity of a leather strap varies according to material and usage. Quality artisanal alligator guarantees 5–8 years of daily wear; vegetable-tanned calf reaches 7–10 years; shell cordovan, owing to its superior molecular density, may last 10–15 years with regular maintenance only (periodic application of conditioning balm). A Casati Milano strap, subject to an 18-month warranty against manufacturing defects, undergoes stringent quality controls that extend longevity beyond industry averages.

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