[CW] Ship Radio Room clock

[Richard Knoppow]

    My clock was not made by Chelsea but I wrote to them and they 
thought they could repair it. Mine is marked something like 
American Shipping Board and I suspect is very much the same as 
the Chelsea clock. Before it came down in an earthquake it was 
pretty accurate but not to the degree of a common crystal 
controlled battery clock.  Part of the accuracy of any of these 
clocks is winding it on a regular schedule. An 8 day clock is 
really meant to be wound once a week, at the same time on the 
same day. The clock drifts faster and slower as the spring 
unwinds so one sets the regulator so that its on time at the time 
of winding.
    Ships carried "chronometers", extremely accurate clocks in 
protective housings used for navigation purposes. Generally 
checked by radio although they pre-date radio. The other way of 
setting them is via astronomical observation. Clocks used for 
navigation purposes must be as accurate as possible but radio 
room clocks are not used for navigation, only log keeping.
    I will have to search out a good clock repair person again. 
It was discouraging that the person I found damaged the clock 
more than it was.

On 1/9/2022 4:14 PM, n7dc wrote:
> We had those clocks in the Diplomatic Telecommunications stations 
> around the world.  Very accurate and never remember having to 
> reset one, except when came in on night shift and some dodo had 
> reset it for Daylight Idiot time.  They were always on GMT (ZULU 
> time).  Thankfully they hadn't set the world wide computer time.  
> Can you imagine the confusion work wide if that had happened?
> 
> 
> 
> Sent from my Galaxy
> 
> 
> -------- Original message --------
> From: Craig Roberts via CW <cw at mailman.qth.net>
> Date: 1/9/22 4:24 PM (GMT-05:00)
> To: cw at mailman.qth.net
> Subject: Re: [CW] Ship Radio Room clock
> 
> Chelsea Clock in Chelsea, MA -- who made the original mechanical 
> ship's
> clocks -- offers a quartz radio room clock in both 6 and 8.5 inch 
> sizes
> in the traditional Bakelite cases.  While the old mechanical time
> keepers are much more desirable, the quartz ones are at least 
> accessible
> and affordable, (and keep time more accurately).  I've had one in my
> shack for many years. It loses about five seconds a year.
> 
> https://www.chelseaclock.com/radio-room-clock-8-5-dial
> 
> 73,
> 
> Craig, W3CRR
> 
> 
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL