Seiko Cal. 6657 - 657

This Quartz model from 1969 features a 43mm Titanium case. Powered by the 6657 caliber with 33j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-f12ba0632af2]

Also known as: Rally

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1969

Related Models

• Seiko 6674-612
• Seiko 4490-168
• Seiko 3832-988
• Seiko 5294-443
• Seiko 5617-607
• Seiko 3881-157
• Seiko 6692-806
• Seiko 4463-123
• Seiko 3857-377
• Seiko 4491-500
• Seiko 3870-993
• Seiko 5232-631