Seiko Cal. 4450 - 930

This Spring Drive model from 1983 features a 41mm PVD Black case. With its 21mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-8ffd07df6384]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1983

Related Models

• Seiko 6337-694
• Seiko 6359-646
• Seiko 5615-880
• Seiko 5246-818
• Seiko 5689-306
• Seiko 6374-833
• Seiko 6313-834
• Seiko 7065-901
• Seiko 3862-790
• Seiko 4478-130
• Seiko 6231-602
• Seiko 4586-919