Seiko Cal. 6178 - 313

The Seiko 6178-313 represents an important milestone in Seiko's 1979 lineup. Powered by the 6178 caliber with 24j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-61aa199d9abe]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1979

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