Seiko Cal. 6690 - 780

This Spring Drive model from 1982 features a 40mm Hardlex-Coated Steel case. With its 18mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-1f6f6f6075f9]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1982

Related Models

• Seiko 6625-704
• Seiko 7030-334
• Seiko 5678-480
• Seiko 5297-279
• Seiko 3893-199
• Seiko 4513-129
• Seiko 5654-763
• Seiko 5242-409
• Seiko 6251-726
• Seiko 5298-563
• Seiko 0756-583
• Seiko 6260-284