Seiko Cal. 5688 - 238

The Seiko 5688-238 represents an important milestone in Seiko's 1983 lineup. Powered by the 5688 caliber with 35j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-9d4a81263bfd]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1983

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