Seiko Cal. 6659 - 660

This Quartz model from 1990 features a 40mm Hardlex-Coated Steel case. It features a White dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-fc04e512c47b]

Also known as: Monster, Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1990

Related Models

• Seiko 6173-691
• Seiko 7080-409
• Seiko 7047-883
• Seiko 5617-853
• Seiko 6140-227
• Seiko 7050-352
• Seiko 6333-959
• Seiko 6262-559
• Seiko 4580-522
• Seiko 6660-103
• Seiko 4422-420
• Seiko 5662-752