Seiko Cal. 3831 - 410

The Seiko 3831-410 represents an important milestone in Seiko's 1972 lineup. Powered by the 3831 caliber with 25j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-4bb44796695f]

Also known as: Sumo, Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1972

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