Seiko Cal. 0721 - 160

This Quartz model from 1973 features a 45mm Hardlex-Coated Steel case. It features a White dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-0d498faf1c23]

Also known as: Monster, Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1973

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