Seiko Cal. 4431 - 790

This Kinetic model from 1970 features a 34mm Two-Tone case. It features a Black dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-a7c85069e966]

Also known as: Sportsmatic, Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1970

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