Seiko Cal. 3864 - 956

The Seiko 3864-956 represents an important milestone in Seiko's 1978 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-bc041017ea5e]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1978

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