This one. My one owner 1964 Accutron 214. It was my daily driver for the years 1964 to 1976 when I really started collecting watches. Since then, it waits its turn between wearings, like today. I'd like to say it is totally original. But in 53 years, it is on its second (identical) dial, third circuit assembly, second tuning fork, and third index wheel. And, of course, it has been serviced countless times. But it is still a brilliant performer, and it doesn't look like a 53 year old watch.