Seiko Cal. 6644 - 284

The 6644-284 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6644 caliber with 35j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-37a1659f2e67]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1965

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