Jaeger-LeCoultre · Master Extreme
Strap for Master Compressor Diver Chronograph Titanium / Bracelet
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
20mm
Lug width20 mm
Case diameter44 mm
Reference186T170 (aka: Q186T170)
FamilyMaster Extreme
MovementJaeger-LeCoultre caliber 751D hours, minutes, small seconds | Chronograph, column wheel
Year2007 - 2009
CaseTitanium
Straps for the Master Extreme 186T170 (aka: Q186T170)
Selected for the 20 mm lug width · workshop selection
Black Rubberized Alligator Strap with Red Tribal Stitching€185
Matte Dark Gray Alligator Strap€195
Matte Black Alligator Strap — Minimal Stitching€149
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered calfskin strap in cuoio€98
The Master Extreme 186T170 (aka: Q186T170), seen from the bench
The Jaeger-LeCoultre Master Extreme Q186T170 is a 44mm titanium grade 5 sports chronograph from the Master Extreme collection. It features the in-house caliber 751D, a column-wheel chronograph movement with hours, minutes, small seconds, and two chronograph counters. The 20mm lug width is proportional to the case diameter and ensures proper strap attachment stability.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only