Seiko Cal. 6644 - 512

The Seiko 6644-512 represents an important milestone in Seiko's 1992 lineup. Powered by the 6644 caliber with 35j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-b4d64fd086b9]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1992

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