Seiko Cal. 6664 - 910

The Seiko 6664-910 represents an important milestone in Seiko's 1981 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-334652159d3e]

Also known as: Turtle, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1981

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