Seiko Cal. 6378 - 250

The Seiko 6378-250 represents an important milestone in Seiko's 1965 lineup. With its 19mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-8a13d78d7a91]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1965

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