Panerai caliber OP XXI

Panerai caliber OP XXI
Brand:Panerai
Reference:OP XXI
Base: ETA 7750
Movement:Automatic
Display:Analog
Diameter:36.60
Jewels:40
Reserve:42
Frequency:28800
Chronograph:Chronograph, Column wheel, Foudroyante, Rattrapante
Hands:Hours, Minutes, Small Seconds

Description

Foudroyante split-seconds movement based on a a LaJoux-Perret modification of the 7750.

All watches using this caliber: