Seiko Cal. 4577 - 235

This Automatic model from 1991 features a 43mm Titanium case. It features a Navy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-00b672bc380f]

Also known as: Sumo, Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1991

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