Seiko Cal. 4577 - 767

This Quartz model from 1970 features a 42mm Stainless Steel case. Powered by the 4577 caliber with 36j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-0dc01dd0a1f5]

Also known as: Bullhead, Helmet

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1970

Related Models

• Seiko 3877-142
• Seiko 4414-135
• Seiko 4425-308
• Seiko 4519-546
• Seiko 7127-913
• Seiko 7031-888
• Seiko 5692-514
• Seiko 4530-785
• Seiko 7176-667
• Seiko 3848-393
• Seiko 0760-123
• Seiko 4522-779