Seiko Cal. 6378 - 131

The Seiko 6378-131 represents an important milestone in Seiko's 1972 lineup. Powered by the 6378 caliber with 32j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-f94f93272156]

Also known as: Bullhead, Silverwave

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1972

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