Seiko Cal. 6378 - 943

The Seiko 6378-943 represents an important milestone in Seiko's 1973 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-371e2021a3d0]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1973

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