Seiko Cal. 7157 - 579

Seiko 7157-579

The Seiko 7157-579 represents an important milestone in Seiko's 1981 lineup. Powered by the 7157 caliber with 33j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-ba0f95e60c34]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
11.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Navy
Jewels
33j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1981

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