Seiko Cal. 6690 - 907

This Spring Drive model from 1997 features a 43mm Gold-Plated case. Powered by the 6690 caliber with 36j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-57cb87fda53e]

Also known as: Bellmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1997

Related Models

• Seiko 6349-939
• Seiko 5659-440
• Seiko 7034-564
• Seiko 3820-147
• Seiko 6667-684
• Seiko 6197-881
• Seiko 7066-759
• Seiko 5232-934
• Seiko 6279-969
• Seiko 7112-222
• Seiko 0752-426
• Seiko 4446-879