Seiko Cal. 3817 - 430

The Seiko 3817-430 represents an important milestone in Seiko's 1987 lineup. Powered by the 3817 caliber with 22j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-aa9400b9ffed]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1987

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