Seiko Cal. 4480 - 431

Released in 1982, the Cal. 4480 with design code 431 was part of Seiko's domestic market collection. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-90fb3deed50e]

Also known as: Sportsmatic, Crown

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1982

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