Seiko Cal. 6639 - 245

The 6639-245 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6639 caliber with 26j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-afb0076d3621]

Also known as: Rally, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1996

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