Seiko Cal. 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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