Seiko Cal. 6644 - 653

The Seiko 6644-653 represents an important milestone in Seiko's 1979 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-df270bc54b57]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1979

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