Seiko Cal. 4557 - 374

This Automatic model from 1991 features a 44mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-5b12a5f9fdd6]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1991

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