Seiko Cal. 5688 - 398

The Seiko 5688-398 represents an important milestone in Seiko's 1981 lineup. Powered by the 5688 caliber with 24j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-de99bda35d3b]

Also known as: Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1981

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