Seiko Cal. 4433 - 370

This Hand-Winding model from 1981 features a 37mm Stainless Steel case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-6fbc0279a166]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1981

Related Models

• Seiko 7193-217
• Seiko 6310-879
• Seiko 0732-673
• Seiko 7011-239
• Seiko 3834-471
• Seiko 4435-881
• Seiko 6666-177
• Seiko 7130-593
• Seiko 6340-403
• Seiko 4593-727
• Seiko 0754-814
• Seiko 7131-160