Seiko Cal. 5640 - 367

This Quartz model from 1973 features a 38mm Stainless Steel case. With its 19mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-b8e28124b533]

Also known as: UFO, Crown

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1973

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