Seiko Cal. 6223 - 728

The Seiko 6223-728 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-e1616da5bfc2]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1970

Related Models

• Seiko 6632-150
• Seiko 6139-297
• Seiko 4490-340
• Seiko 6676-862
• Seiko 6266-414
• Seiko 5220-374
• Seiko 6227-889
• Seiko 6119-616
• Seiko 3885-404
• Seiko 6175-349
• Seiko 4472-475
• Seiko 7151-491