Seiko Cal. 5640 - 469

This Hand-Winding model from 1981 features a 42mm PVD Black case. Powered by the 5640 caliber with 29j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-5b64685ce16e]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1981

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