Seiko Cal. 4443 - 370

This Hand-Winding model from 1970 features a 37mm Hardlex-Coated Steel case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-0b9099d1e704]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1970

Related Models

• Seiko 5270-812
• Seiko 3868-121
• Seiko 4494-772
• Seiko 7058-950
• Seiko 3861-273
• Seiko 3863-849
• Seiko 4451-235
• Seiko 4423-589
• Seiko 7166-748
• Seiko 7158-664
• Seiko 6257-328
• Seiko 6312-514