Seiko Cal. 5637 - 772

The Seiko 5637-772 represents an important milestone in Seiko's 1976 lineup. With its 19mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-13e076e2436d]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1976

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