Seiko Cal. 4527 - 740

The Seiko 4527-740 represents an important milestone in Seiko's 1979 lineup. With its 21mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-414ed77671d6]

Also known as: UFO, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1979

Related Models

• Seiko 4492-552
• Seiko 4438-376
• Seiko 6383-585
• Seiko 6177-362
• Seiko 6129-232
• Seiko 6264-575
• Seiko 5641-711
• Seiko 4573-994
• Seiko 7166-286
• Seiko 4582-558
• Seiko 7173-111
• Seiko 5226-109