Seiko Cal. 6378 - 441

This Spring Drive model from 1997 features a 36mm Hardlex-Coated Steel case. With its 19mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-a86f90033d6e]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1997

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