Seiko Cal. 4481 - 590

Released in 1969, the Cal. 4481 with design code 590 was part of Seiko's domestic market collection. Powered by the 4481 caliber with 28j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-feecebe73ab5]

Also known as: Tuna, World Timer

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1969

Related Models

• Seiko 3870-509
• Seiko 6184-245
• Seiko 0715-246
• Seiko 7133-547
• Seiko 5245-527
• Seiko 7087-529
• Seiko 5272-606
• Seiko 7025-189
• Seiko 3811-366
• Seiko 4464-578
• Seiko 6113-124
• Seiko 7176-408