Seiko Cal. 5687 - 975

This Quartz model from 1975 features a 38mm Stainless Steel case. Powered by the 5687 caliber with 34j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-02ae2574c141]

Also known as: Sumo, World Timer

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1975

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