Seiko Cal. 4431 - 464

This Kinetic model from 1968 features a 40mm PVD Black case. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-7911c80b9121]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1968

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