Seiko Cal. 7138 - 390

This Quartz model from 1975 features a 42mm Two-Tone case. Powered by the 7138 caliber with 28j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-de3445523ac5]

Also known as: Sumo, Rally

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

28j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1975

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