Seiko Cal. 6378 - 326

This Spring Drive model from 1981 features a 38mm Hardlex-Coated Steel case. With its 19mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-e98f4c28a677]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1981

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