Seiko Cal. 4522 - 731

Released in 1978, the Cal. 4522 with design code 731 was part of Seiko's domestic market collection. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-dd410aa0a5ee]

Also known as: Turtle, World Timer

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1978

Related Models

• Seiko 5650-303
• Seiko 7133-959
• Seiko 4428-759
• Seiko 5656-424
• Seiko 4439-680
• Seiko 6319-457
• Seiko 0784-471
• Seiko 6337-346
• Seiko 4549-513
• Seiko 3819-920
• Seiko 7116-153
• Seiko 6617-914