Seiko Cal. 5681 - 771

This Quartz model from 1968 features a 45mm Two-Tone case. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-6c0cd92ac76f]

Also known as: Panda, Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1968

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