Seiko Cal. 6644 - 576

The Seiko 6644-576 represents an important milestone in Seiko's 1996 lineup. Powered by the 6644 caliber with 19j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-30aafc9ee77a]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1996

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