Seiko Cal. 6657 - 757

This Quartz model from 1981 features a 39mm Hardlex-Coated Steel case. It features a Cream dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-11ca8b37cd9f]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1981

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