Seiko Cal. 3813 - 143

The Seiko 3813-143 represents an important milestone in Seiko's 1989 lineup. Powered by the 3813 caliber with 17j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-d468bd78701a]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1989

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