Seiko Cal. 4437 - 655

This Spring Drive model from 1970 features a 38mm Gold-Plated case. Powered by the 4437 caliber with 19j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-3bfb935438a3]

Also known as: Panda, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1970

Related Models

• Seiko 4450-133
• Seiko 4593-504
• Seiko 5272-968
• Seiko 7133-724
• Seiko 6325-327
• Seiko 4515-598
• Seiko 6363-212
• Seiko 7095-665
• Seiko 7041-262
• Seiko 6122-404
• Seiko 3887-646
• Seiko 7142-980