Jaeger-LeCoultre · Master Ultra Thin
Strap for Master Ultra Thin Date Pink Gold / Eggshell / Alligator
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 diameter39 mm
Reference1232511 (aka: Q1232511)
FamilyMaster Ultra Thin
MovementJaeger-LeCoultre caliber 899/1
Hours, Minutes, Seconds | Date
CasePink Gold
Straps for the Master Ultra Thin 1232511 (aka: Q1232511)
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 Ultra Thin 1232511 (aka: Q1232511), seen from the bench
The Jaeger-LeCoultre Master Ultra Thin Ref. 1232511 in 39mm rose gold features the automatic-winding caliber 899/1 movement with hours, minutes, seconds, and date. This minimalist dress watch from the Vallée de Joux combines an ultra-thin case with a clean dial and applied indices, embodying understated elegance. The 20mm lug width accommodates the full range of compatible straps, with polished and satin-finished surfaces on the rose gold case creating visual depth without excessive decoration.
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