The one inside the Tach. I see a square hole on the back, does it take a special tool or am I missing a cable of some sort?
BrianM
Youāre missing a cable that allows you to turn the setting mechanism from under the dash.
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Youāre missing a cable that allows you to turn the setting mechanism from under the dash.
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Looked for it at the usualās and could not find it even referenced. Anyone know where to get one?
I recently saw one on auction or for sale on ebay, but did not put it on my watchlist as I did not need it.
Take a look on both the XKE and XK ebay auctions for it. I think itās still there.
Looked there. What was it called? any memory of the description?
Does your clock actually run?
Brian,
I donāt know if this is the one for an E-Type, but it is a Jaguar Clock Reset Cableā¦
-David
Hi, I found what I saw the other day. Donāt know if this is what you need, but this is all I could find
Wasnāt it set at the factory?
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Does your clock actually run?
Yes, had it rebuilt by CoolCatās guyā¦
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Thatās probably the one. putting Odometer in the description is a
bit confusing because I think they are two different sizes.
Have to do some measuring and comparing tonight.
Thanks,
Brian
Disconnect your battery until just the right moment, then reconnect it 
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Mine does, and surprise, it keeps accurate time once I got it dialed in. Iāve got it to where itās accurate to within about 5 minutes a month. Close enough.
How do you manage with an accuracy of 5 minutes per month?
Ove, Iām guessing youāre joking, but if not, these are analog timepieces. They actually go ātick tock,ā and hearing that quiet clicking in a silent car is wonderful.
According to the old Seth Thomas clock manufacturer dating back a few centuries, if your analog clock keeps accurate time within a minute each week, youāre in good shape. In London of the 1800s, when it came close to high noon, people would gather in the streets to adjust their pocket watches to Big Ben. Same with other major cities.
Certainly these Smiths clocks dating back to the 1940s fit within this category of timepiece. They are extraordinary, four-jeweled, hand-built pieces of functional beauty, requiring maintenance-ājust like everything else about Jaguar in the day. And when functioning properly, there is nothing like them, as we all know.
If you want your Jaguar clock to be digitally accurate, you can have the innards replaced with a modern movement. But you lose the ticking, and, equally, the enjoyment of adjusting it every week as you wait those required few minutes for the engine to warm up with its manual choke engaged before you back out of the garage.
There are two sources Iām aware of that can supply a digital pacemaker to these clocks while keeping the balance wheel and all of the analog gear movement intact, thus preserving the desired ātick tock.ā One is Mike Eck, who will perform the service if you send him your clock. (See relevant threads on the subject.) The other is Mark Willows of Clocks4Classics.com who will send you a kit from England for roughly $100 US.
A man with a clock knows what time it is, a man with more than one clock is never quite sureā¦
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This might be a stupid question, but is there any product that you know of that will keep power supplied to the clock once you disconnect the battery?
I disconnect the negative terminal at the end of each drive. I was told by the PO my S1 clock was rebuilt by the CoolCat guys. It does not seem to run when connected, and I was disconnecting the battery anyways, so I just set it to 4:00 and left it there! 
However, I would love the proper ticking clock, even if it lost a few minutes a week but Iām not gonna reset it if itās hours-off for each drive.
Perhaps some kind of capacitor that charged when the battery is connected and took over once disconnectedā¦ If it doesnāt exist, maybe I should make oneā¦ Seems like classic car folks the world over would flock for one of these. I could sell dozens!
AndrewAndrew, hereās some info on Smiths clock repair. It has answers to all your questions.
If you disconnect the battery when the car isnāt in use, as many of us do, using a battery disconnect switch or similar device, you can connect a low amperage fuse across the disconnect which will keep the clock running but blow if any larger load is present. I think some battery disconnects come with such a fused bypass incorporated. Of course, if you forget to reconnect he battery, the fuse will blow if you try to start the car, or turn the lights on, or maybe if you open the door if the map-light draws too much currentā¦