Seiko Cal. 5640 - 849

This Hand-Winding model from 1984 features a 44mm PVD Black case. Powered by the 5640 caliber with 26j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-5881226fe27b]

Also known as: Helmet, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1984

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