Seiko Cal. 5688 - 652

This Spring Drive model from 1971 features a 42mm Gold-Plated case. Powered by the 5688 caliber with 33j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-b2c6d2f3d61d]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1971

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