Jaeger-LeCoultre · Master Ultra Thin

Strap for Master Ultra Thin Squelette White 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 diameter38 mm
Reference13435SQ (aka: Q13435SQ)
FamilyMaster Ultra Thin
MovementJaeger-LeCoultre caliber 849A SQ Hours, Minutes
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 Master Ultra Thin 13435SQ (aka: Q13435SQ)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Master Ultra Thin 13435SQ (aka: Q13435SQ), seen from the bench

The Jaeger-LeCoultre Master Ultra Thin 13435SQ is a white gold dress watch from the Master Ultra Thin collection, featuring a 38mm case diameter and the in-house caliber 849A SQ movement. The strap lug width measures 20mm. This model exemplifies the watchmaker's philosophy of mechanical miniaturization through ultra-thin proportions.

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