T SWISS T

Dec 20, 2011,19:17 PM
 

Tony, 

Not to speak for calvong, but I have a very similar GP Observatory Chronometer in an 18K gold US case, and mine too has a T SWISS T dial and a complete lack of luminous material on either the dial or the hands.

I hope to have a write-up on this watch soon, but having examined mine carefully before and after overhaul by GP Chaux de Fonds, my belief is that these watches were not tritiated and that the dial printing is simply a mismatch.

It would take someone of PeterCDE's knowledge to confirm this but my working hypothesis is that GP's dial supplier for this batch printed the T SWISS T either in error (because most of GP's dials were tritiated at the time?) or that a design decision to omit the luminous material was made after the dials were ordered/delivered.

Beyond GP, I had thought that other manufacturers of the era sometimes had dials which either had the T, but no tritium, or tritium and no T, and that this was not an iron-clad indication of, say, dial refinishing.

regards, Tom

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GP Observatory Chronometer - Back from overhaul at GP Swiss!

 
 By: calvong : December 14th, 2011-21:11
Proud to be an owner of this beauty...  

Wow!

 
 By: KIH : December 14th, 2011-21:23
Gosh, I am really drooling.... One of my dream watches..... May I see the movement 32A? A huge congrats!!! Ken

More pics ( dial and backside ) please! A beauty, Calvong. [nt]

 
 By: amanico : December 14th, 2011-22:22
No message body This message has been edited by amanico on 2011-12-14 22:22:25

Definitely need more pictures of this beauty.

 
 By: grigo : December 14th, 2011-22:35
The first one you have posted is just to small to appreciate the watch fully. Best regards, George

Congrats!

 
 By: dxboon : December 15th, 2011-00:09
More pictures please! You must be enjoying your new beauty after its overhaul at GP! Cheers, Daos

dial shots

 
 By: calvong : December 15th, 2011-17:57
...  

This is sooooo beautiful!

 
 By: KIH : December 16th, 2011-06:24
I am drooling..... Congrats! Such a nice legendary piece.... That IS the great GP indeed! Ken

thanks..

 
 By: calvong : December 18th, 2011-20:15
..for the kind words! best, c

Very nice, but I have a question...

 
 By: Tony C. : December 20th, 2011-17:56
the dial reads "T SWISS T" where is/was the tritium? Regards, Tony C.

T SWISS T

 
 By: tee530 : December 20th, 2011-19:17
Tony, Not to speak for calvong, but I have a very similar GP Observatory Chronometer in an 18K gold US case, and mine too has a T SWISS T dial and a complete lack of luminous material on either the dial or the hands. I hope to have a write-up on this watc... 

Hi Tom...

 
 By: Tony C. : December 21st, 2011-09:56
thanks for your thoughtful reply. I also tend to think along the lines that you suggest, in that I see no other indications of a possible re-dial. The fact that you have a similarly anomalous HF does lend further support to your theory. Having said that, ... 

I still need to take a photo of mine, but...

 
 By: tee530 : December 21st, 2011-18:51
...both of the photos below belong to PeterCDE and show watches in his collection. The original post is here on PuristsPro, but as I recall, all three are 18K gold monocoque cases, 34mm, sold in the USA. The left watch is a clear redial, and a poor one at...  

luminous...

 
 By: Tony C. : December 22nd, 2011-07:48
Hi Tom, Here’s my theory on Peter’s pair that you showed. The middle example is a pure dress watch (I doubt that the crown is original), and as such, relatively fine print was used on the dial. The one on the right is a more bold design, in that there are... 

Observatory Chronometer Dials

 
 By: Captain Chaos : December 31st, 2011-08:13
For what it is worth, here are my two, both Swiss T....  

A me il quandrante sembra una ristampa

 
 By: robert11a2001 : December 21st, 2011-11:48
A me pare che il quadrante sia una ristampa. Naturalmente potrei sbagliarmi a causa di un'errore di parallasse ma mi sembra abbastanza evidente che la grafica della secondiera sia ruotata rispetto agli indici in oro. La distanza tra l'indice grafico che p... 

Reply

 
 By: TS1987 : January 1st, 2012-08:34
All of these Observatory Chronometers are making me jealous as I only have 2 "C" case and a square "civilian" models. If anyone is desperate for cash, PM me.. I'll provide a good home for any with original dial and in full working order. Never been afraid... 

Cost of GP overhaul

 
 By: tonybirch1 : August 13th, 2014-19:19
Hi, I have recently picked up a GP Observatory Chronometer, cal 32A, its been abused, god knows why anyone would have a timepiece like this and look after it!! I was thinking of sending it to GP to get it overhauled (instead of giving it my normal watch g... 

Welcome here, Tony!

 
 By: blomman Mr Blue : August 13th, 2014-22:21
And congratulation to a very fine and rare piece! :) As for the service cost, hard to tell since it all depends on what has to be done on your watch. The good thing with sending the watch to GP instead of a local watchmaker is that the chance of them havi... 

Disappointing reply from GP

 
 By: tonybirch1 : January 5th, 2015-05:55
Hi Blomman Sent the movement to GP, it had a broken winding spindle and it was returned with the comment that they no longer have ANY spare parts for this movement! Very disappointing response! I have found a watch repairer who will make one, fortunately ... 

Strange....

 
 By: blomman Mr Blue : January 5th, 2015-06:42
Hi Tony, Sorry to hear this and I find it very strange. Did you send the watch to GP Switzerland? Because I know they do vintage restorations there. Hope yours will come back in good shape. Best Blomman

GP repair!

 
 By: tonybirch1 : January 6th, 2015-04:35
Hi Blomman, I contacted GP through their website and they got me to send it to their agent in the UK who then told me they do not undertake vintage watch repair in the UK and that they had sent the watch movement to GP, it is a movement, dial, hands, crys... 

Too bad

 
 By: blomman Mr Blue : January 6th, 2015-13:02
Not sure if this is the case here, but I know that many Manufactures only services complete watches, not movements separately. Hope you will find a donate watch. Best Blomman

this is why

 
 By: TS1987 : January 5th, 2015-15:35
I used to have and will buy another loose Calibre 42.1 Chronometer HF movement for spares. Parts are interchangeable in many instances at minimal cost!

Thanks for that info, I...

 
 By: tonybirch1 : January 6th, 2015-04:40
Thanks for that info, I had been told the same by Tim in Oz. But had missed out on the only one I had seen on ebay or anywhere else for that matter. I will keep searching! Regards Tony. Date: Mon, 5 Jan 2015 15:34:50 -0800

My GP's lees the Observatory Chronometer. Sorry for the quality of the pics.

 
 By: tonybirch1 : February 12th, 2015-07:38
My GP's, less the OBS Chrono. 'Poker' dial, Cal 21 ref 7317 early Giromatic, Cal 32A HF chrono. 18 ct Cal 42.4 HF chrono, Cal 490 late giro roller gold The cal. 21 has a lovely black silvered dial but it does not show well on the pics. ...  

Very nice gathering of Gyromatics! :)

 
 By: blomman Mr Blue : February 12th, 2015-12:28
Congrats! :) The black looks really nice! Please show us more. Best Blomman