Seiko Cal. 5688 - 628

This Spring Drive model from 1987 features a 36mm PVD Black case. With its 19mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-e8d31302c133]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1987

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