Seiko Cal. 5688 - 494

This Hand-Winding model from 1979 features a 37mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-74b4ed9e4042]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1979

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