Seiko Cal. 6661 - 833

The Seiko 6661-833 represents an important milestone in Seiko's 1969 lineup. Powered by the 6661 caliber with 21j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-1d08a54948b5]

Also known as: Sumo, Shogun

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1969

Related Models

• Seiko 6632-259
• Seiko 6364-875
• Seiko 4561-636
• Seiko 4485-241
• Seiko 5676-166
• Seiko 4520-278
• Seiko 6133-592
• Seiko 6351-189
• Seiko 5210-639
• Seiko 5653-627
• Seiko 6684-107
• Seiko 3854-360