Seiko Cal. 5637 - 745

This Quartz model from 1970 features a 41mm Hardlex-Coated Steel case. With its 19mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-971f83ff122c]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1970

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