Seiko Cal. 0766 - 820

The Seiko 0766-820 represents an important milestone in Seiko's 1987 lineup. Powered by the 0766 caliber with 19j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-9588a09b567a]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1987

Related Models

• Seiko 6292-861
• Seiko 6649-674
• Seiko 6612-667
• Seiko 7186-291
• Seiko 4454-103
• Seiko 6390-666
• Seiko 7135-559
• Seiko 6687-175
• Seiko 0742-151
• Seiko 6166-130
• Seiko 7088-220
• Seiko 0732-982