Seiko Cal. 6378 - 912

The 6378-912 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-8083ac35ff71]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1975

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