Seiko Cal. 6378 - 341

This Hand-Winding model from 1976 features a 42mm Gold-Plated case. With its 19mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-6fa4517480d2]

Also known as: Sumo, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1976

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