Seiko Cal. 6278 - 327

This Spring Drive model from 1978 features a 39mm PVD Black case. It features a Green dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-320bde6f218f]

Also known as: Bullhead, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1978

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