Jaeger-LeCoultre · Master Extreme

Strap for Master Compressor Chronograph Ceramic Grey

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

Lug width

20mm

20 mm straps All Jaeger-LeCoultre

Lug width20 mm

Case diameter46 mm

Reference205C571 (aka: Q205C571)

FamilyMaster Extreme

MovementJaeger-LeCoultre caliber 757 hours, minutes, Additional 12 hours Hand (adjustable), day / Night Indication | date | Chronograph, column wheel | power reserve indicator

Year2016

CaseTitanium, Ceramic

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

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Straps for the Master Extreme 205C571 (aka: Q205C571)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Master Extreme 205C571 (aka: Q205C571), seen from the bench

The Jaeger-LeCoultre Master Extreme Q205C571 is a 46 mm sport-luxury chronograph combining titanium and black ceramic construction with the in-house Calibre 757 movement. The case houses a column-wheel chronograph, GMT hand, day/night indicator, date window, and power reserve display. Lug width is 20 mm, compatible with standard aftermarket straps; the straight, tapered case lugs accommodate 20/18 mm strap configurations without lateral force.

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