Seiko Cal. 6178 - 274

The Seiko 6178-274 represents an important milestone in Seiko's 1972 lineup. Powered by the 6178 caliber with 29j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-f0f343f862ec]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1972

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