Seiko Cal. 6639 - 642

The 6639-642 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6639 caliber with 30j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-3c33205f5504]

Also known as: Pogue

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1984

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