IWC Portuguese Chrono-Rattrapante Barozzi IW3712-12

IWC
Serise:IWC Portuguese
Model:IW3712-12
Case:
Case Material:Stainless steel
Case Glass:Sapphire
Case Back:Closed
Case Diameter:40.90 mm
Case Height:12.30 mm
W/R:30.00 m
Dial:
Dial Color:Silver
Dial Indexes:Arabic numerals
Dial Hands:Feuille
Movement:
Rattrapante movement based on Valjoux 7750/ 7760. Rattrapante module developed by Richard Habring for IWC. 27-31 jewels depending on year of execution.
Type:Handwound
Brand:IWC
Caliber:76240
Base:ETA 7750
Display:Analog
Diameter:30.00 mm
Jewels:31
Reserve:44 h
Frequency:21600 bph
Time:Hours, Minutes
Chronograph:Chronograph, Rattrapante