Seiko Cal. 3831 - 622

Released in 1983, the Cal. 3831 with design code 622 was part of Seiko's domestic market collection. Powered by the 3831 caliber with 17j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-74b55fd43379]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1983

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