Patek Philippe Minute Repeater Ref. 3939 Only Watch 2011 Edition, Stainless Steel Case, Unique Piece

Swiss luxury watch manufacture Patek Philippe supports Only Watch Auction 2011 by presenting a unique Stainless Steel Minute Repeater model, Ref. 3939,which will be auctioned on September 22nd, 2011 at 4 p.m. in Monaco to fund medical research for the Duchenne Muscular Dystrophy.

To support Only Watch 2011 Patek Philippe created for the first time a Stainless Steel Minute Repeater timepiece with a black enamel dial based on the emblematic Ref. 3939 model. The Only Watch 2011 special stainless steel model Ref. 3939 is and will remain the one and unique piece ever produced by Patek Philippe Geneva.
Technical details
Model : Patek Philippe Minute Repeater model, Ref. 3939 – Only Watch 2011

Mechanical manually wound movement
Caliber 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

Caliber
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

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