Seiko Cal. 6678 - 953

The Seiko 6678-953 represents an important milestone in Seiko's 1975 lineup. Powered by the 6678 caliber with 29j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-860d7d73aa8b]

Also known as: Sumo, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1975

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