Seiko Cal. 7120 - 509

Seiko 7120-509

The Seiko 7120-509 represents an important milestone in Seiko's 1973 lineup. Powered by the 7120 caliber with 23j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-9a40571f084b]

Also known as: Monster, Helmet

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
34mm
Case Thickness
14.6mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
Champagne
Jewels
23j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1973

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