Seiko Cal. 0723 - 366

This Automatic model from 1976 features a 40mm Stainless Steel case. It features a Navy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-345631796215]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1976

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