Jaeger-LeCoultre · Master Control

Strap for Master Control Date Stainless Steel / Silver / Novonappa

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
Reference4018420 (aka: Q4018420)
FamilyMaster Control
MovementJaeger-LeCoultre caliber 899AC 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 Control 4018420 (aka: Q4018420)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Master Control 4018420 (aka: Q4018420), seen from the bench

The Jaeger-LeCoultre Master Control 4018420 is a stainless steel timepiece from the 1992 Master Control line featuring a 40mm case with integrated antimagnetic ring. It displays hours, minutes, seconds and date through a sapphire crystal with anti-reflective coating. The watch is powered by the in-house JLC 899AC automatic calibre, entirely developed and produced at Le Sentier. It features a 20mm lug width, the standard size for this case diameter, ensuring harmonious proportions with the strap.

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