Seiko Cal. 6639 - 339

The 6639-339 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6639 caliber with 31j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-ce136dc14376]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1995

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