Seiko Cal. 4443 - 528

The Seiko 4443-528 represents an important milestone in Seiko's 1976 lineup. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-72c23abce355]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1976

Related Models

• Seiko 6151-809
• Seiko 6693-834
• Seiko 5247-290
• Seiko 5682-422
• Seiko 5227-131
• Seiko 6226-991
• Seiko 6280-402
• Seiko 6638-888
• Seiko 4532-322
• Seiko 6291-960
• Seiko 5691-564
• Seiko 5678-647