Seiko Cal. 3831 - 620

Released in 1988, the Cal. 3831 with design code 620 was part of Seiko's domestic market collection. With its 18mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-390df65ed1b6]

Also known as: UFO, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1988

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