Seiko Cal. 3878 - 566

The 3878-566 is a sought-after Automatic piece from Seiko's golden era. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-8406c0cb4e3b]

Also known as: Shogun, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1992

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