Seiko Cal. 3864 - 660

Released in 1981, the Cal. 3864 with design code 660 was part of Seiko's domestic market collection. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-ee259cbb302a]

Also known as: Bullhead, Arnie

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1981

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