Seiko Cal. 4423 - 157

This Hand-Winding model from 1986 features a 43mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-2cbc3155f5db]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1986

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