This thread will summarize GS releases by (only) the following parameters:
ref
any qty, geograhic, or retailer limitation
year of release
Data source will be @Plus 9Time web site
Edit 1: latest PDF is in post #11.
Edit 2: The precise procedure for …
Continue readingThis is a re-do of last year's investigation into positional variation of HAQ movements. The term refers to the slight change in rate of the watch depending on how it is stored.
This placeholder post #1 will be later edited to summarize the threa…
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Onega’s product page: Seamaster Regatta America’s Cup – 216.92.46.79.10.001 | OMEGA®
Which says
Calibre OMEGA 5701
The OMEGA Seamaster Regatta is powered by an all‑new multi‑functional quartz chronograph movement, OMEGA’s calibre 5701, with thermo‑compensated integrated circuit. Its special features include an inertial sensor unit, brightness…
New colorway for the SSNAV-D pilot watch with the ETA F06.412 PreciDrive movement
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Continue readingInvestigation into rate precision of the Seiko cal. 9063 FT-cut 'Twin Mode' movement of the early 80s. Will try to test different temperatures. And also positions, if the rate is stable enough.
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Continue reading1. In 1996, Seiko published one method involving a spring and a viscous damper:
“we adopted a method in which a third wheel, whose gear and pinion are elastically connected by a coil spring, and a fourth wheel, whose rotational load is applied by the viscous resistance of grease, are installed in the gear train”
The spring…
Seiko’s technology for battery-powered clocks with sweeping seconds
Prior to the 1978 appearance of Seiko Twin Quartz, the methods used to achieve high accuracy under varying temperatures were limited thermoinsensitivity via megahertz frequency AT-cut oscillators, and analog thermocompensation (analog TC) via some sort…
Continue readingThis is a running catalog of all known watches with Citizen's caliber 0350, A660, A010, A060 and 0100 high accuracy quartz movements. It is provided in PDF form for offline viewing. The intended audience are those interesting in acquiring one of t…
Continue readingNew movement, smallest automatic SD ever, with energy density midway between the venerable 9R65 and the mighty 120 hour 9RA2.
Specs per Fratello:
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