Seiko Cal. 6646 - 579

The Seiko 6646-579 represents an important milestone in Seiko's 1980 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-671e95d9948b]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1980

Related Models

• Seiko 6384-866
• Seiko 6334-399
• Seiko 3859-291
• Seiko 7024-171
• Seiko 6355-857
• Seiko 3882-683
• Seiko 5257-466
• Seiko 7187-683
• Seiko 3838-297
• Seiko 6395-997
• Seiko 5296-248
• Seiko 0772-820