Seiko Cal. 6639 - 650

The 6639-650 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6639 caliber with 32j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-2a721ed8ccea]

Also known as: Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1997

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