Seiko Cal. 6657 - 301

This Spring Drive model from 1973 features a 34mm Gold-Plated case. With its 22mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-50b874e1dd5d]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1973

Related Models

• Seiko 6130-155
• Seiko 6177-150
• Seiko 6211-985
• Seiko 7148-171
• Seiko 4497-159
• Seiko 5256-278
• Seiko 4419-275
• Seiko 6160-885
• Seiko 0778-958
• Seiko 6615-406
• Seiko 4573-564
• Seiko 6142-386