Seiko Cal. 5623 - 490

This Spring Drive model from 1986 features a 36mm Stainless Steel case. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-d56c808de3bd]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1986

Related Models

• Seiko 0764-906
• Seiko 4546-561
• Seiko 4589-601
• Seiko 5697-582
• Seiko 6330-381
• Seiko 6347-866
• Seiko 5269-288
• Seiko 6173-471
• Seiko 7194-438
• Seiko 4554-668
• Seiko 0724-553
• Seiko 3854-847