Seiko Cal. 6644 - 610

This Spring Drive model from 1972 features a 46mm Gold-Plated case. Powered by the 6644 caliber with 24j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-0c4d7bd948c6]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1972

Related Models

• Seiko 0732-902
• Seiko 4570-292
• Seiko 7031-151
• Seiko 7193-885
• Seiko 5665-876
• Seiko 5219-536
• Seiko 3862-947
• Seiko 0793-574
• Seiko 4522-599
• Seiko 6381-407
• Seiko 6160-304
• Seiko 4591-775