Seiko Cal. 6668 - 989

The Seiko 6668-989 represents an important milestone in Seiko's 1972 lineup. It features a Green dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-000ea9424ddf]

Also known as: Tuna, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1972

Related Models

• Seiko 6232-865
• Seiko 6320-185
• Seiko 0793-441
• Seiko 6192-420
• Seiko 7135-504
• Seiko 5288-447
• Seiko 6171-584
• Seiko 5235-591
• Seiko 4436-405
• Seiko 3824-283
• Seiko 7084-179
• Seiko 0724-701