Seiko Cal. 5657 - 577

This Quartz model from 1972 features a 37mm Titanium case. It features a Cream dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-413274560ea6]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1972

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