Seiko Cal. 4433 - 100

This Spring Drive model from 1988 features a 37mm Hardlex-Coated Steel case. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-cfd4bc5eeddf]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1988

Related Models

• Seiko 6611-674
• Seiko 7192-930
• Seiko 7013-154
• Seiko 6681-437
• Seiko 6696-667
• Seiko 6159-772
• Seiko 4471-500
• Seiko 0785-767
• Seiko 5261-311
• Seiko 4447-509
• Seiko 4567-907
• Seiko 0717-803