Seiko Cal. 3813 - 890

The Seiko 3813-890 represents an important milestone in Seiko's 1976 lineup. It features a White dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-474d9babe78f]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1976

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