Seiko Cal. 0764 - 874

This Spring Drive model from 1971 features a 46mm Hardlex-Coated Steel case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-ec3cc21d93b4]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1971

Related Models

• Seiko 4556-148
• Seiko 6133-332
• Seiko 4419-385
• Seiko 6655-262
• Seiko 6250-676
• Seiko 3817-840
• Seiko 3844-544
• Seiko 0775-460
• Seiko 3881-556
• Seiko 5692-587
• Seiko 6345-924
• Seiko 7055-385