Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while tying up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
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My Hobby Website:
An Atomic Pocket Watch: Hoptroff No. 10
you have ever dreamed of having your own atomic-driven pocket watch,
too bad, you'll have to wait a little longer. It's not that none exist,
it's that only 12 will be made at this time (pun
intended), and I'm guessing they're all spoken for* - you probably
couldn't afford one, anyway. How much for this masterpiece of horological
Hoptroff Ltd. isn't saying. "Big deal," you might say, "I have
clocks synched to the
WWVB (see also
RF Cafe Factoid #226)
signal from NIST's laboratory in Boulder, Colorado." This watch does
NOT use that signal; the No. 10 watch has its own onboard
ovenized cesium atomic standard (it has a crystal, too, as an option).
The watch face is so covered with dials and pointers (28) that you have
to look for the actual clock part (it's dead center
in case you missed it) - akin to modern cellphone that has so
many functions that you wonder if you can actually place a call with
it. 20 more indicators will be added to the backside by for planned
production in 2014. Ironically, the clock display is the only one amongst
the profusion of indicators that has no numerical markings. I added
labels to Hoptroff's image (see below).
Stephen Cass asked of Richard Hoptroff, "What was the motivation
for creating the watch?" Mr Hoptroff's answer was, "Quite honestly,
it was a compulsion: As soon as I worked out I might be able to make
the most accurate watch in the world, I knew I had to do it. It made
no economic sense at all." "The No. 10 is one of the most remarkable
timepieces in the history of horology: the first watch to be regulated
by its own atomic clock, rather than a balance spring, a pendulum or
quartz. It is accurate to one and a half seconds per thousand years.
Not just marginally better than other watchmaking movements, but thousands
of times so." "The No. 10 was first conceived as a navigational aid.
With only this extraordinary timepiece and a sextant, it is possible
to determine one's latitude and longitude to within a nautical mile
– a traditional system, and keystone of horological accuracy, updated
for the 21st century with the atomic precision of the Hoptroff No. 10.
It is a shame, then, that only twelve pieces will ever be made."
Hoptroff No. 10 Atomic Pocket Watch
* ...by super wealth "anti-capitalists"
Posted December 22, 2013