Seiko Cal. 3860 - 656

The Seiko 3860-656 represents an important milestone in Seiko's 1979 lineup. Powered by the 3860 caliber with 33j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-d55e76e3b223]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1979

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