Hi @all, after stumbling across the (newer) JLC Geophysics, (picture from C24) I would like to know more about other pure mechanical-models with true second-function (I am not sure, if this is the only and correct technical term....) Such a watch might be my next purchase. Let´s go! and talk about them......
Seconde Morte -- dead second -- was a hugely valued complication, especially for doctors, that fell out of style when quartz came in and it became a way to distinguish a cheap watch. Rolex did a dead seconds they called a Tru-Beat. A lot had the complication stripped out, but an original today is expensive. The Geophysic is a great watch by the way, although I prefer the crosshair dial of the 1958 re-issue...
Thank you for the link to the ROLEX: new to me Concerning the re-issue: I don´t like these hands Searching for true-beat I found this one to add picture: C24
Nice thread here on the dead seconds "complication": https://omegaforums.net/threads/jaeger-lecoultre-geophysic-true-second.29925/ Omega Synchrobeat: https://omegaforums.net/threads/last-incoming-of-the-year-synchrobeat.87333/ https://omega-constellation-collect...06/omega-synchrobeat-myths-and-realities.html Doxa/Chezard: https://omegaforums.net/threads/doxa-dead-seconds.45502/
There were pocket watches and clocks with dead-second movements as well. I have a few "Exact Time" dealer display versions, including the model shown below. While there were issues with most of the wristwatch versions, I have the impression that those employed in high quality larger movements were reliable.
Habring2 also makes them in their various models; https://www.habring2.com/index.php/en/collection/477-jumping-second-2016-en and this is the JLC solution inside the cal 772