Seiko Cal. 6637 - 451

The 6637-451 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-220d61dc3fcc]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1992

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