My 37 year old Rolex day-date gains less than 2 sec/day compared to GPS clock.
Rolex standard is +6/-2 sec/day.

Regards, NL7F

On Mon, 5 Mar 2018 01:38:06 -0500, Don Murray via time-nuts wrote:

Bill Beam
NL7F

Hi Bill...
 
My Rolex GMT Master was stolen back in '75,
so no luck on that.  Rolex is a bit pricey for
my needs.
 
My Seiko CQ001M, one of the first Seiko Digitals,
was amazing.  Over the time I had it, it varied less
than plus/minus 1 second against WWV.  I carried
a Radio Shack Time Kube with me, when I was
challeneged, as to the accuracy of that watch!  
It died many years later, and the replacement
innards were totally "loose!"
 
Yes, I think that Time Kube qualifies me as a
"Old School Time Nut!  ;-)
 
TNX Bill.
 
73
Don
W4WJ
 
In a message dated 3/5/2018 1:31:04 AM Central Standard Time, wbeam@gci.net writes:

 
My 37 year old Rolex day-date gains less than 2 sec/day compared to GPS clock.
Rolex standard is +6/-2 sec/day.

Regards, NL7F

On Mon, 5 Mar 2018 01:38:06 -0500, Don Murray via time-nuts wrote:

Bill Beam
NL7F

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and follow the instructions there.

I wore a Casio "Atomic" watch and it set itself reliably for many years
until very recently. They are still available.  I've replaced it with a
Seiko Solar "Radio" watch which I understand has a better wwvb receiver
in it. Haven't worn it yet so I'm not sure how it will perform but I've
heard good comments.
Bill

On 3/5/2018 1:38 AM, Don Murray via time-nuts wrote:

Even my pre civil war pocket watches should be good enough
for your needs.  Better than a minute/day.

But for some (many) time-nuts it's about wants, not needs.

My clocks and watches that can be heard across the room qualify
me as old school time nut.  (My DOB qualifies me as just plain old.)

On Mon, 5 Mar 2018 03:20:40 -0500, Don Murray via time-nuts wrote:

Bill Beam
NL7F

On Mon, 5 Mar 2018 01:38:06 -0500
Don Murray via time-nuts time-nuts@febo.com wrote:

I've owned several Swatch and Tissot over the past decades,
Growing up in Switzerland does that to you. :-)

I currently have a Tissot P-Touch (first generation) and
a Swatch Irony in active use. Both are accurate enough
that I only set them twice a year (DST switch) and they
are usually off by less than 10s. Which is good enough
for my needs as a wristwatch.

So I guess, go for any modern Swiss quartz watch :-)

		Attila Kinali

--
It is upon moral qualities that a society is ultimately founded. All
the prosperity and technological sophistication in the world is of no
use without that foundation.
-- Miss Matheson, The Diamond Age, Neil Stephenson

Hi

If you want to stick with WWV, the Citizen “Ecco Drive” (solar) WWVB
watches are a pretty good option. Until I caved in to the wonders of
a cell phone on my wrist, I used them for many years. Nothing to fuss
with. No battery to die on you. Always keeps the right time. Available
in titanium. The only drawback is the limited number of styles they
make it in. You may or may not see one you like the looks of.

Bob

Am 05.03.2018 um 14:01 schrieb Bob kb8tq:

ECO-Drive

I second that. In Europe, it synchronizes to DCF77 and in
Japan to Fukushima, if that should be operational again.

I wonder how they make it, that it lives from just a few
photons now & then, year after year.

Gerhard

For those of us whose time-nuttery extends into the fascinating world of
mechanical watches and clocks, the kind of accuracy usually discussed here
is not only impossible but essentially irrelevant (quelle horreur!). Our
interest is in the beauty and elegance of micromechanical devices that have
evolved over centuries. When I look down at one of the 25 or so
wristwatches in my small collection or up at the ten wall and floor clocks
in my home, I am seeing far more than merely the time. If all I want is the
time, I can always glance at my phone or go to the basement and fiddle with
one or another of the electronic devices there.

My oldest watch, a Waltham Model 57, has been running continuously for 150
years and still keeps time within a minute per day. Horology is about so
much more than crystals and resonances and Allen deviations.

On Monday, March 5, 2018, Gerhard Hoffmann dk4xp@arcor.de wrote:

--
Patriotism is supporting your country all the time, and your government
when it deserves it.
--Mark Twain

We may be surprised at the people we find in heaven. God has a soft spot
for sinners. His standards are quite low.
--Desmond Tutu

If you are into rugged, I have a casio atomic solar that special forces use…

I was able to tail-end a gov’t contract and got it for cheap.

aren’t we silly.

Regards,

Jerry

Jerry Hancock
jerry@hanler.com
(415) 215-3779