Seiko Cal. 6638 - 702

The 6638-702 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6638 caliber with 30j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-2a71297582f2]

Also known as: Flighty

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1972

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