Seiko Cal. 6644 - 963

The 6644-963 is a sought-after Quartz piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-b4f1d8565884]

Also known as: Sumo, Rally

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

26j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1984

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