Jaeger-LeCoultre · Master Ultra Thin

Strap for Master Ultra Thin 1907 Pink Gold

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

Lug width20 mm
Case diameter39 mm
Reference1292520 (aka: Q1292520)
FamilyMaster Ultra Thin
MovementJaeger-LeCoultre caliber 849 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 Master Ultra Thin 1292520 (aka: Q1292520)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Master Ultra Thin 1292520 (aka: Q1292520), seen from the bench

The Jaeger-LeCoultre Master Ultra Thin 1292520 (Q1292520) embodies refined watchmaking tradition from the Vallée de Joux. This rose gold model features a clean dial with hours and minutes only, paired with the ultra-thin caliber 849 measuring just 1.85mm in thickness. The 39mm rose gold case stands 7.5mm tall with a 20mm lug width, delivering classical haute horlogerie proportions without decorative excess.

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