Jaeger-LeCoultre · Master Grande Tradition

Strap for Master Grande Tradition Tourbillon Cylindrique Quantième Perpétuel Pink Gold / Silver

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

Lug width20 mm
Case diameter42 mm
ReferenceQ5042420 (aka: 5042420)
FamilyMaster Grande Tradition
MovementJaeger-LeCoultre caliber 985 Hours, Minutes, Additional 12 Hour Hand (adjustable), Additional 24 Hour Hand (fixed), Small Seconds | Date, Day, Month, Perpetual Calendar, Year Indicator | Tourbillon Escapement
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 Grande Tradition Q5042420 (aka: 5042420)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Master Grande Tradition Q5042420 (aka: 5042420), seen from the bench

The Jaeger-LeCoultre Master Grande Tradition Gyrotourbillon Westminster Perpétuel, reference Q5042420, is a 42mm rose gold timepiece featuring the caliber 985 manufacture movement. It integrates a multi-axis spherical gyrotourbillon and the most complex Westminster chime ever miniaturized, alongside a perpetual calendar, annual indication, and additional complications. The 20mm lug width accommodates high-end straps.

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