Seiko Watchesのインスタグラム(seikowatchusa) - 12月10日 05時13分

#spotted at our collectors event in NYC last night – a QC-951 Crystal Chronometer.
The Seiko Crystal Chronometer QC-951 (1963) is a small, desktop quartz timer with unprecedented low-power consumption — it was capable of operating for one year on two size-D batteries. Starting with the Tokyo Olympic Games in October 1964, crystal chronometers were widely used as official timing devices. Even under severe operating conditions, from the blazing heat of midsummer to below the freezing point in midwinter, the chronometers operated accurately. Subsequently, commercialized models in this series were employed on bullet trains and on snow vehicles for Antarctic exploration. They were also used as clocks and timers on public transport. The crystal chronometer also had a big influence on the later development of the world's first quartz watch, the Seiko Quartz Astron 35SQ. #seikotechnology #vintageseiko #seikostories
For more pics of the event, check out our Stories.

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