Seiko Cal. 4424 - 506

The Seiko 4424-506 represents an important milestone in Seiko's 1990 lineup. Powered by the 4424 caliber with 20j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-f3ab07c848b2]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1990

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