Jaeger-LeCoultre · Master
Strap for Master Grand Tourbillon White Gold / Blue Enamel
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 diameter43 mm
Reference16634E0 (aka: Q16634E0)
FamilyMaster
MovementJaeger-LeCoultre caliber 978
Hours, Minutes, Seconds | Tourbillon Escapement
CaseWhite Gold
Straps for the Master 16634E0 (aka: Q16634E0)
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€210
Black Alligator Strap with White Edges€210
Millenium Cognac Alligator Strap€270
Matte Blue Alligator Strap€270
Green Rubberized Alligator Strap with Ecru Tribal Stitching€185
The Master 16634E0 (aka: Q16634E0), seen from the bench
The Jaeger-LeCoultre Master 16634E0 features the caliber 978 tourbillon movement integrated with hours, minutes, and seconds. The 43 mm white gold case employs a technical aesthetic, with the tourbillon escapement visible yet understated on the dial. The 20 mm lug width is a precise specification requiring compatible straps without adapters; measuring between the lug attachments ensures correct fit and prevents lateral play or mechanical stress on the horns.
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