Seiko Cal. 5644 - 461

This Hand-Winding model from 1987 features a 40mm PVD Black case. Powered by the 5644 caliber with 31j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-318e1d19e7bb]

Also known as: Monster, Rally

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1987

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