Seiko Cal. 7157 - 588

This Hand-Winding model from 1965 features a 42mm Hardlex-Coated Steel case. Powered by the 7157 caliber with 28j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-4f7b5f66c554]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1965

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