Seiko Cal. 4487 - 358

The Seiko 4487-358 represents an important milestone in Seiko's 1990 lineup. Powered by the 4487 caliber with 36j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-2f9fe2368ec1]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1990

Related Models

• Seiko 5249-905
• Seiko 4444-771
• Seiko 7073-682
• Seiko 5291-154
• Seiko 0749-600
• Seiko 3842-548
• Seiko 5698-647
• Seiko 7020-421
• Seiko 4453-322
• Seiko 6310-146
• Seiko 4428-478
• Seiko 6226-414