Seiko Cal. 5691 - 996

The Seiko 5691-996 represents an important milestone in Seiko's 1974 lineup. With its 21mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-1e30b0426790]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1974

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