Seiko Cal. 6639 - 510

Released in 1985, the Cal. 6639 with design code 510 was part of Seiko's domestic market collection. Powered by the 6639 caliber with 25j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-b5dad5cc79db]

Also known as: Pogue, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1985

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