Seiko Cal. 6641 - 147

The Seiko 6641-147 represents an important milestone in Seiko's 1982 lineup. Powered by the 6641 caliber with 28j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-2d0107ade75c]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1982

Related Models

• Seiko 7117-420
• Seiko 6651-496
• Seiko 0788-603
• Seiko 7126-802
• Seiko 6282-784
• Seiko 7163-970
• Seiko 6266-655
• Seiko 0792-875
• Seiko 5227-585
• Seiko 4482-299
• Seiko 7012-311
• Seiko 5698-841