Seiko Cal. 3831 - 842

This Automatic model from 1988 features a 44mm PVD Black case. Powered by the 3831 caliber with 31j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-87e70590b427]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1988

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