Jaeger-LeCoultre · Master Ultra Thin

Strap for Master Ultra Thin

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter41 mm
Reference1338421 (aka: Q1338421)
FamilyMaster Ultra Thin
MovementJaeger-LeCoultre caliber 898C hours, minutes, day / Night Indication
Year2013
CaseStainless Steel

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 1338421 (aka: Q1338421)

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Master Ultra Thin 1338421 (aka: Q1338421), seen from the bench

The Jaeger-LeCoultre Master Ultra Thin features the caliber 898C with day/night indication in addition to hours and minutes. The movement offers an ultra-flat construction characteristic of the Master Ultra Thin collection. The reference 1338421 presents essential functions in a slim format typical of the line.

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