Seiko Cal. 5688 - 711

This Solar model from 1979 features a 37mm Two-Tone case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-9ae5322edca8]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1979

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