Seiko Cal. 6644 - 464

The 6644-464 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6644 caliber with 17j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-c8b607d6f301]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1965

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