I have had this watch since day #1 (ordered on 10/03/2019). In 2 years it lost a total of appr. 3 seconds (1 sec in year #1 and 2 secs in year #2). It is consistently losing time at a microscopic rate. I guess, the extra 1 second I lost is not worthy for any complaints. I can only describe every aspect of it in superlative terms. Do I recommend it? Only for perfectionists.
This was the most expensive watch I have ever purchased -- 4 time more expensive than the most expensive watch I have owned. I love it. First, it is as accurate as claimed. Unlike my mechanical and quartz watches, it does not need any correction on a daily or weekly basis. The watch is elegant -- simple but beautiful as is the very different from standard watch band. I wear this watch daily; except for rigorous excursions like sailing. I am a Vermont elder male who would recommend this watch to anyone who cares about knowing the precise time.
Citizen Response
I like the watch very much and wear it everyday. It replaced my AP, Blancpain, Rolex, and Omega and becomes my daily watch now. It is low-profile, shinny, lightweight. The best part: I will never need to adjust time!
The account of John Harrison's efforts to produce the compact H4 in 1759 is one of the greatest in horology. Mr. Harrison was credited with accuracy of one second per month, an astounding characteristic surpassing even today's "superlative chronometers". Citizen joins Mr. Harrison in a feat of unrivaled design, the autonomous 0100 movement, with record-breaking performance. Everything about this is perfect for me: the name "Citizen", for I am proud to be a citizen of a republic, not the subject of a crown or a monarchy. The dial and furniture beautiful, but not ostentatious. The bracelet of special titanium, which will remain untarnished by the environment perpetually. And of course, the accuracy. Quite simply, the best accuracy. This is an engineering, design & craftsmanship masterpiece. I cannot think of any other piece on Planet Earth for which I would trade. I feel blessed and very fortunate to be one of the few to own one.