Seiko Cal. 3831 - 920

The 3831-920 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3831 caliber with 30j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-6fa7e6133c1f]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1989

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