Seiko Cal. 4591 - 320

This Spring Drive model from 1999 features a 37mm Hardlex-Coated Steel case. Powered by the 4591 caliber with 26j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-59e08c42207c]

Also known as: Crown, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1999

Related Models

• Seiko 3824-185
• Seiko 4442-880
• Seiko 6684-557
• Seiko 6337-694
• Seiko 6378-849
• Seiko 6328-919
• Seiko 5687-892
• Seiko 6625-959
• Seiko 6163-631
• Seiko 7143-640
• Seiko 4525-511
• Seiko 4458-404