Seiko Cal. 6639 - 803

The 6639-803 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-6ee7fc1c59bb]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1971

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