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Rado 657 Diamaster Grande Seconde

Rado Caliber 657

Rado 657 Diamaster Grande Seconde

Brand Rado
Caliber Number 657
Base Caliber
ETA 2899 (2899-S2)
Movement Type Automatic, self-winding mechanical
Jewels 21
Lignes 11 1/2”’
Power Reserve ~42 hours
Beat Rate 28,800 (4 Hz)
Anti-Shock System Incabloc
Rotor Style
Ball bearing system
Hacking Seconds? Yes
Hand Count
3
Features Offset hours and minutes dial; offset running small seconds subdial at 9:00, date at 9:00
Country of Manufacture Switzerland, Swiss made
Known Models Rado Diamaster Grande Seconde (Please add your watch in the comments below…)

What is often referred to as the Rado caliber 657 is actually an ETA caliber 2899. Click here for the ETA 2899 caliber listing.

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