Seiko Cal. 6657 - 280

This Quartz model from 1965 features a 36mm Two-Tone case. With its 18mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-e418dafc5249]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1965

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