This is the first look at Patek Philippe’s “Minute Repeater Tourbillon” for the Only Watch 2011 charity auction to be held in Monaco on September 22nd at 4pm to fund medical research for Duchenne Muscular Distrophy.

For the first time the ref 3939 has been produced in stainless steel. For many watch connoisseurs, Patek Philippe’s Ref. 3939 – with its minute repeater, tourbillon, and subsidiary seconds dial represents one of the finest achievements in watchmaking.

Patek Philippe hopes that the pure, sweet sound of the minute repeater chiming mechanism of this unique timepiece will support the message of hope for the Duchenne Muscular Dystrophy Research.

Technical Specifications

Watch:

Mechanical manually wound movement
Calibre R TO 27 PS
Minute repeater with tourbillon escapement
Chime with two gongs activated by a slide piece in the case
Seconds subdial
Applied Breguet-style numerals
Interchangeable full back and sapphire crystal case back
Case is humidity and dust protected only (not water resistant)
Stainless steel
Case diameter: 33.3 mm

Calibre:

Minute repeater with tourbillon escapement
Seconds subdial
Overall diameter: 28 mm
Height: 6.58 mm
28 jewels, 12 bridges
Balance: Gyromax
Vibrations per hour: 21’600
Power reserve: 48 h max.
Balance spring: Breguet
Number of parts: 336
C.O.S.C. certificate
Flywheel
Tourbillon visible on the bridge side
Third wheel in gold