![]() ![]() ![]() That’s over five times more precise than international standards require. Why are we referencing all these numbers? Because Citizen’s Chronomaster timepieces are accurate to ±5 seconds a year. While the typical quartz timepiece maintains a ☑ second a day average and good quartz timepieces make ☑5 seconds a month, by COSC standards, a quartz chronometer holds a requirement of ☒5.55 seconds a year. Some quick numbers to note: according to the Contrôle Officiel Suisse des Chronomètres (COSC), mechanical tickers are considered to be highly precise when they maintain a rate of −4/+6 seconds per day. As a result, high-precision quartz timekeeping is making a strong comeback. YouTube 0:00 / 5:05 The Citizen AQ4020-54Y Chronomaster Unboxing - This dial is made of Washi paper Andy in SG 5.81K subscribers Subscribe 37 Share Save 1.3K views 6 months ago. Normally, a watch would encounter a few seconds of deviation per day. To be classified as a HAQ, a watch should be accurate up to at least plus or minus ten seconds per year. This redefinition is in no small part due to the presence of smartwatches, which are driving forward digital timekeeping efforts. Because of its insane accuracy, the Citizen Chronomaster belongs to an elite group of what is known today as High Accuracy Quartz watches (HAQ). In recent days, however, there’s been increasing interest in redefining electronically assisted timekeeping – quartz-powered timekeepers are no longer simply the more accessible option. Best price from Japan on this Citizen AQ4020-54Y Chronomaster Eco-Drive that has the Tosa Washi paper white dial, Super titanium Duratect Case, sapphire glass (99 Clarity coating), also comes with Caliber A060. At Revolution, we’ll be honest in saying that we’re a tad biased towards mechanical watchmaking.
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