Seiko Cal. 5663 - 523

This Quartz model from 1968 features a 45mm Stainless Steel case. Powered by the 5663 caliber with 28j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-32142d9d7722]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1968

Related Models

• Seiko 4584-328
• Seiko 6234-614
• Seiko 7096-174
• Seiko 3836-996
• Seiko 5657-913
• Seiko 3818-879
• Seiko 7178-660
• Seiko 7118-549
• Seiko 6293-942
• Seiko 7064-767
• Seiko 6677-870
• Seiko 6617-823