Jaeger-LeCoultre · Duomètre

Strap for Duomètre à Quantième Lunaire 40.5 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 diameter42 mm
Reference6042521 (aka: Q6042521)
FamilyDuomètre
MovementJaeger-LeCoultre caliber 381 hours, minutes, seconds, Foudroyante seconds | date | moonphase
Year2014
CaseRose 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 Duomètre 6042521 (aka: Q6042521)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Duomètre 6042521 (aka: Q6042521), seen from the bench

The Jaeger-LeCoultre Duomètre à Quantième Lunaire 6042521 is a complex timepiece from the Jaeger-LeCoultre manufacture, presented in 2007. It features a 40.5mm pink gold case with a 20mm lug width and houses the caliber JLC 381 movement. The watch combines two independent mechanical systems with a shared case, incorporating a jumping second (foudroyante), lunar phase, and calendar complication on a dual-reading dial.

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