Seiko Cal. 6690 - 155

The Seiko 6690-155 represents an important milestone in Seiko's 1968 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-add618d92054]

Also known as: Turtle, Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1968

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