Jaeger-LeCoultre · Master Ultra Thin

Strap for Master Ultra Thin Date Stainless Steel / Bucherer Blue

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

Lug width20 mm
Case diameter40 mm
Reference128848S
FamilyMaster Ultra Thin
MovementJaeger-LeCoultre caliber 899A/1 Hours, Minutes, Seconds | Date
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 128848S

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Master Ultra Thin 128848S, seen from the bench

The Jaeger-LeCoultre Master Ultra Thin is equipped with the in-house automatic caliber 899A/1. The watch offers central hour, minute, second and date indication. The ultra-thin movement allows for a reduced case thickness while maintaining the essential functions.

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