Seiko Cal. 6639 - 815

The Seiko 6639-815 represents an important milestone in Seiko's 1982 lineup. Powered by the 6639 caliber with 23j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-aae3e59f9e2c]

Also known as: Pogue, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1982

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