Panerai caliber OP XXXI

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Brand:Panerai
Reference:OP XXXI
Base: ETA 7750
Movement:Automatic
Display:Analog
Diameter:30.00
Jewels:25
Reserve:50
Frequency:28800
Date:Date
Hands:Additional 24 Hour Hand (adjustable), Hours, Minutes, Small Seconds

OP XXXI description

Automatic mechanical, exclusive Panerai OP XXXI calibre, 13¼ lignes, 25 jewels. Glucydur® balance, 28,800 alternations/hour. Incabloc® anti-shock device. 178 components. Power reserve 50 hours. It is tested and certified by C.O.S.C.

All watches using the Panerai OP XXXI movement:

Panerai Luminor 44 GMT Automatic Stainless Steel / Black (PAM01088)

PAM01088 Panerai Luminor 44 GMT Automatic Stainless Steel / Black