Seiko Cal. 6640 - 252

This Solar model from 1991 features a 44mm Hardlex-Coated Steel case. Powered by the 6640 caliber with 35j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-fb3988339c79]

Also known as: Rally, Bellmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1991

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