Seiko Cal. 5688 - 198

This Quartz model from 1979 features a 39mm Gold-Plated case. Powered by the 5688 caliber with 31j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-92e0d668a0e2]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1979

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