Seiko Cal. 6278 - 321

The Seiko 6278-321 represents an important milestone in Seiko's 1971 lineup. It features a Cream dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-c3ab2e1b13ef]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1971

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