Seiko Cal. 7027 - 790

Seiko 7027-790

The Seiko 7027-790 represents an important milestone in Seiko's 1977 lineup. Powered by the 7027 caliber with 23j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-62054d8209a6]

Also known as: Sumo, Helmet

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
13.7mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Green
Jewels
23j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1977

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seikata-wm-62054d8209a6