Seiko Cal. 4550 - 599

The Seiko 4550-599 represents an important milestone in Seiko's 1995 lineup. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-fadca9ee0ec7]

Also known as: Bullhead, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1995

Related Models

• Seiko 0780-205
• Seiko 5282-408
• Seiko 7040-938
• Seiko 4528-335
• Seiko 4592-227
• Seiko 6611-903
• Seiko 6637-809
• Seiko 5289-958
• Seiko 5270-274
• Seiko 7066-667
• Seiko 7155-722
• Seiko 6264-186