Seiko Cal. 5688 - 998

The Seiko 5688-998 represents an important milestone in Seiko's 1989 lineup. Powered by the 5688 caliber with 21j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-ef7a280ecc06]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1989

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