Seiko Cal. 4564 - 638

The Seiko 4564-638 represents an important milestone in Seiko's 1989 lineup. With its 19mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-367d345689d3]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1989

Related Models

• Seiko 5246-123
• Seiko 6270-499
• Seiko 6279-897
• Seiko 7137-467
• Seiko 5236-428
• Seiko 0725-547
• Seiko 5640-888
• Seiko 5276-220
• Seiko 5291-831
• Seiko 3852-125
• Seiko 4560-605
• Seiko 5619-561