Seiko Cal. 5664 - 503

This Spring Drive model from 1979 features a 41mm Titanium case. Powered by the 5664 caliber with 22j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-77a92d0ddce5]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1979

Related Models

• Seiko 6257-384
• Seiko 6353-523
• Seiko 5293-139
• Seiko 6184-211
• Seiko 7158-297
• Seiko 6361-981
• Seiko 6344-293
• Seiko 4594-283
• Seiko 7141-759
• Seiko 4444-527
• Seiko 5673-852
• Seiko 6380-410