Seiko Cal. 6689 - 643

The Seiko 6689-643 represents an important milestone in Seiko's 1969 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-ce948351888d]

Also known as: Turtle, UFO

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1969

Related Models

• Seiko 5654-967
• Seiko 4529-115
• Seiko 4431-491
• Seiko 4517-822
• Seiko 3833-510
• Seiko 7179-881
• Seiko 4522-750
• Seiko 6633-338
• Seiko 6364-159
• Seiko 7120-963
• Seiko 6331-233
• Seiko 5697-761