Seiko Cal. 4447 - 729

The Seiko 4447-729 represents an important milestone in Seiko's 1981 lineup. Powered by the 4447 caliber with 19j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-f89469fe0ba7]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1981

Related Models

• Seiko 6214-705
• Seiko 4568-130
• Seiko 6361-594
• Seiko 6169-932
• Seiko 6329-938
• Seiko 6664-663
• Seiko 4551-155
• Seiko 6651-354
• Seiko 5661-735
• Seiko 7080-291
• Seiko 6618-484
• Seiko 3870-878