Seiko Cal. 5688 - 146

The Seiko 5688-146 represents an important milestone in Seiko's 1979 lineup. Powered by the 5688 caliber with 30j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-567e7699e439]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1979

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