Seiko Cal. 6639 - 285

Released in 1974, the Cal. 6639 with design code 285 was part of Seiko's domestic market collection. Powered by the 6639 caliber with 18j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-447aa70ba0ab]

Also known as: Pogue, Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

18j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1974

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