Seiko Cal. 6378 - 164

The Seiko 6378-164 represents an important milestone in Seiko's 1976 lineup. Powered by the 6378 caliber with 19j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-85468f84623d]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1976

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