Seiko Cal. 3831 - 670

Released in 1984, the Cal. 3831 with design code 670 was part of Seiko's domestic market collection. With its 22mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-26c645be41bc]

Also known as: Monster, Arnie

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1984

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