Seiko Cal. 3864 - 991

This Quartz model from 1977 features a 35mm Two-Tone case. With its 18mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-074aacd3cbc6]

Also known as: Turtle, Monster

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1977

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