Seiko Cal. 5688 - 154

This Spring Drive model from 1966 features a 40mm Stainless Steel case. Powered by the 5688 caliber with 23j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-2238e7be8744]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1966

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