Seiko Cal. 3856 - 620

This Automatic model from 1979 features a 40mm PVD Black case. Powered by the 3856 caliber with 24j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-0deed309b9d5]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1979

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