Seiko Cal. 6636 - 207

The 6636-207 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-d6946c15e6c6]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1979

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