Seiko Cal. 6644 - 376

The Seiko 6644-376 represents an important milestone in Seiko's 1976 lineup. Powered by the 6644 caliber with 28j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-8d9fd60cb423]

Also known as: Goldfeather, Crown

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1976

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