Seiko Cal. 6644 - 960

The 6644-960 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6644 caliber with 36j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-7c6961768c5d]

Also known as: Bellmatic, Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1999

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