Seiko Cal. 4495 - 433

This Spring Drive model from 1981 features a 40mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-a80ed31dd54c]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1981

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