Further, these watches are very hard to find in the US. The Citizen Chronomaster watch collection starts at about $1,900, and this one is likely under $1000 (there is a reserve on the auction, but I promise it is likely less than $1000. These are pretty compelling reasons in my opinion to consider thermoline quartz movements special. The Citizen A660 thermoline quartz movement does not have a high energy draw, and is better suited to longevity that radio controlled watches. Thus, you’ll find that most radio controlled watches are either solar powered, or need to have their batteries changed more often. Only occasionally do the receive the radio signals so that they can update themselves. For that reason they aren’t in receive mode all the time. Second, radio controlled watches take a lot of battery power. A thermoline quartz movement is fully independent. If you are not within range, they are just ordinary quartz watches. They require being in the vicinity of the atomic clock radio towers (of which there are six in the world currently). First radio controlled watches are not fully independent. While radio controlled watches are very cool, they lack at least two important traits. Some people suggest their relevance is limited given the availability of radio controlled watch movements that receive local atomic clock radio signals.
What I really want to talk about is why high accuracy quartz movements are important. Seeing this allows you to appreciate the watch as the high end Japanese watch that it is, rather than a mid grade quasi classic formal watch. These pictures really help to display the rich depth and high polish of the case. While the pictured watch is devoid of a strap, it is merely pictured that way and comes with two of them. Now, because I have discussed the merits of this watch, I will briefly mention that one is available at a very fair price on eBay right now.
A thermoline quartz movement is accurate to within about 5 seconds year! The Citizen Chronomaster is one of the nicest Citizen watches to embody this wonderfully accurate movement (same type of movement in the Breitling Aerospace).
In summary it is a specially designed quartz movement that is able to modulate the vibration of the quartz crystal in differing temperatures to ensure consistency, which in turn allows for greater precision. The Citizen A660 is a thermoline quartz movement that I spent some time discussing here. The main draw of the Japan only Citizen Chronomaster ( previously discussed here) is really the movement.
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