Seiko Cal. 6661 - 611

The Seiko 6661-611 represents an important milestone in Seiko's 1966 lineup. Powered by the 6661 caliber with 25j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-3b3e2cc5f58e]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1966

Related Models

• Seiko 5246-514
• Seiko 4572-779
• Seiko 3825-332
• Seiko 7072-835
• Seiko 6220-963
• Seiko 6358-117
• Seiko 6117-357
• Seiko 0784-208
• Seiko 4462-763
• Seiko 7130-489
• Seiko 0717-448
• Seiko 3862-822