Seiko Cal. 6647 - 406

The Seiko 6647-406 represents an important milestone in Seiko's 1980 lineup. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-acdcd1d74ae3]

Also known as: Bellmatic, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1980

Related Models

• Seiko 4412-968
• Seiko 7125-430
• Seiko 4535-216
• Seiko 4458-151
• Seiko 0732-602
• Seiko 6630-440
• Seiko 4418-788
• Seiko 6284-777
• Seiko 6661-966
• Seiko 6325-684
• Seiko 4458-147
• Seiko 4467-442