Replica Patek Philippe Grand Complications SeriesPatek Philippe Perpetual Calendar Chronograph 3971 (3971J/001)

Brand: Patek Philippe Replica
Series: Grand Complications
Model: 3971J/001
Dial Color: Gold
Dial Indexes: Arabic numerals
Dial Hands: Breguet
MBrand:Patek Philippe
Caliber:CH 27-70 Q
Base:Lemania 2310
Display:Analog
Diameter:30.00 mm
Jewels:24
Reserve:60 h
Frequency:18000 bph
Time:Hours, Minutes, Small Seconds, Day / Night Indication
Date:Date, Day, Leap Year, Month, Perpetual Calendar
Chronograph:Chronograph, Column wheel
Based on a Nouvelle Lemania ebauche, the CH 27-70 Q powered the iconic references 3970 and 5970. With added rattrapante function (CHR 27-70 Q) it also served in the much-coveted 5004. It was the last of the Patek Philippe Perpetual Calendar Chronograph movements not to be fully in-house.
Case Material:Yellow gold
Case Glass:Sapphire
Case Back:Open
Case Shape:Round
Case Diameter:36.00 mm
The Patek Philippe reference 3971 is a rare variation of the 3970, exclusively fitted with a glazed screw back. Most were fitted with a silver dial. The pictured example however, a 1989 model later to appear in a Christie's auction, features a rare gilt dial.