Seiko Cal. 3864 - 809

This Hand-Winding model from 1987 features a 44mm Hardlex-Coated Steel case. Powered by the 3864 caliber with 28j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-a2f06750c125]

Also known as: Crown, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1987

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