Seiko Cal. 6646 - 822

The 6646-822 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-ebdda733631d]

Also known as: Monster, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1974

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