Seiko Cal. 6690 - 865

This Quartz model from 1975 features a 46mm PVD Black case. Powered by the 6690 caliber with 27j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-a8d38c9d2cd5]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1975

Related Models

• Seiko 5634-768
• Seiko 0726-740
• Seiko 0779-817
• Seiko 6618-241
• Seiko 6364-328
• Seiko 4515-823
• Seiko 7037-205
• Seiko 5286-913
• Seiko 4468-340
• Seiko 4413-340
• Seiko 3873-385
• Seiko 7036-713