Seiko Cal. 5681 - 897

Released in 1970, the Cal. 5681 with design code 897 was part of Seiko's domestic market collection. With its 19mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-1b25afa4bf2b]

Also known as: Bullhead, Navigator

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

43mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

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