Seiko Cal. 6640 - 649

This Hand-Winding model from 1990 features a 35mm PVD Black case. Powered by the 6640 caliber with 35j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-f2ed8ad632f0]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1990

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