Seiko Cal. 6657 - 146

This Quartz model from 1972 features a 40mm Hardlex-Coated Steel case. With its 18mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-74a9047d7805]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1972

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