Seiko Cal. 4439 - 520

The Seiko 4439-520 represents an important milestone in Seiko's 1983 lineup. Powered by the 4439 caliber with 34j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-c7c1ff537be1]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1983

Related Models

• Seiko 5293-489
• Seiko 6116-956
• Seiko 3831-136
• Seiko 6394-490
• Seiko 3866-503
• Seiko 6654-776
• Seiko 7018-309
• Seiko 6694-368
• Seiko 6610-456
• Seiko 3814-315
• Seiko 6656-837
• Seiko 6135-101