Seiko Cal. 4413 - 231

This Kinetic model from 1971 features a 42mm Hardlex-Coated Steel case. It features a Silver dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-5478aa80fea2]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1971

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