Seiko Cal. 6644 - 866

The Seiko 6644-866 represents an important milestone in Seiko's 1966 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-71921adc2445]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1966

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