Seiko Cal. 6657 - 610

This Quartz model from 1968 features a 36mm Hardlex-Coated Steel case. It features a Cream dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-c042c5e3c977]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1968

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