Seiko Cal. 3812 - 647

The Seiko 3812-647 represents an important milestone in Seiko's 1989 lineup. Powered by the 3812 caliber with 26j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-a5a96deab5bc]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1989

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