Seiko Cal. 5287 - 521

The Seiko 5287-521 represents an important milestone in Seiko's 1971 lineup. Powered by the 5287 caliber with 22j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-23ef982537b2]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1971

Related Models

• Seiko 7163-762
• Seiko 5646-927
• Seiko 6362-271
• Seiko 5269-618
• Seiko 7019-684
• Seiko 5661-196
• Seiko 7122-314
• Seiko 5633-127
• Seiko 7027-889
• Seiko 6173-780
• Seiko 3837-477
• Seiko 6616-295