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robm · 6 May 2007, 11:45 AM

I have a two-tone datejust. I bought it new from an AD in 1987. Where the hands ever meant to glow? Both the hour and minute hands have white markings. I don't think they ever did. They certainly don't now. How many years do the hands glow?

Rob

JJ Irani · 6 May 2007, 11:46 AM

Quote:

Originally Posted by robm

I have a two-tone datejust. I bought it new from an AD in 1987. Where the hands ever meant to glow? Both the hour and minute hands have white markings. I don't think they ever did. They certainly don't now. How many years do the hands glow?

Rob

Your watch is like 20 years old....and at the time it would have been treated with Tritium - not the present day Luminova.

Tritium has a life of around 12 years....so your luminosity would have been long gone by now.

Cheers - JJ

Alcan · 6 May 2007, 11:55 AM

"Were my hands meant to glow"

No. The hands on your watch, however, were designed to glow in the dark for 12 - 15 years after which the tritium gave up.

If your hands glow, I'd suggest immediate medical attention!

JJ Irani · 6 May 2007, 11:57 AM

Quote:

Originally Posted by Alcan

"Were my hands meant to glow"

No. The hands on your watch, however, were designed to glow in the dark for 12 - 15 years after which the tritium gave up.

If your hands glow, I'd suggest immediate medical attention!

Quite a frisky mood we are in today, uh Al? What's up....won the Powerball or something....maybe planning on getting the Yuckmaster for your yachting?

Alcan · 6 May 2007, 12:45 PM

Quote:

Originally Posted by JJ Irani

Quite a frisky mood we are in today, uh Al? What's up....won the Powerball or something....maybe planning on getting the Yuckmaster for your yachting?

Nahhh.... just one of those days. It was a beautiful spring Saturday here today, 17*C. I launched the boat yesterday and spent all day today rigging it. Should be ready to sail tomorrow when we'll do the final tuning and setup on the rig. Our first practice race is next Tuesday with the Spring Series starting the week after.

Nancy just bought me a full set of the very latest technology single membrane North sails for this season, so the boat should be significantly faster than last year. She said it was less painful than listening to me whining about how slow the boat was. Our newest sail was a '99, and it was getting seriously tired. Now we're all wound up and itching to go!

http://na.northsails.com/Racing_Sail...echnology.html

P.S. I'd get laughed out of the club if I showed up sporting a YuckMaster!

LMP · 6 May 2007, 02:12 PM

Rob,

Tritium is a weak beta emitter with a half-life of a little more than 12 years. There is perhaps approx. 30% of the original Tritium left on your dial markers and hands. Below the 6 o'clock dial position you should see 'T SWISS MADE T' or similar, indicating Tritium activated phosphor. I have a 1991 TT Date which has lost virtually all of its phosphorescence.

LMP

mike · 6 May 2007, 05:07 PM

Yeah, as was mentioned tritium has a half-life of about 12.5 years. Tritium itself does not glow, but rather "excits" the phosphors in the paint matrix to glow.

Tritium was outlawed from watch dial around 1998.

mikey · 6 May 2007, 05:52 PM

Why was tritium outlawed? I have the T-Swiss Made-T on mine.

Spark · 6 May 2007, 06:54 PM

Quote:

Originally Posted by mikey

Why was tritium outlawed? I have the T-Swiss Made-T on mine.

Because it is very slightly radioactive.

mikey · 7 May 2007, 01:18 AM

Radioactive? Does this mean I will have radioactive blood like Spiderman?

oldbreadstinks · 7 May 2007, 02:19 AM

Quote:

Originally Posted by mikey

Radioactive? Does this mean I will have radioactive blood like Spiderman?

thats peter parker, the rest of us just get cancer and deformities after which we'll linger on for a few painful months in the hospital before kicking the bucket

Mr. K · 7 May 2007, 02:48 AM

Quote:

Originally Posted by oldbreadstinks

thats peter parker, the rest of us just get cancer and deformities after which we'll linger on for a few painful months in the hospital before kicking the bucket

Agreed. But I think radioactive blood is more along the lines of the Hulk.

JJ Irani · 7 May 2007, 04:35 AM

Quote:

Originally Posted by mikey

Radioactive? Does this mean I will have radioactive blood like Spiderman?

Could be, but I doubt you'd fit into his costume!!

robm · 7 May 2007, 05:32 AM

My watch does have the 'T SWISS MADE T' markings. I guess it is time to get a 2nd watch!

TT Daytona or President??? I really like the watch Ashutosh uses as a picture. But a president with an onyx dial looks really nice too!

Prince · 7 May 2007, 05:58 AM

Quote:

Originally Posted by robm

...I guess it is time to get a 2nd watch!

TT Daytona or President??? I really like the watch Ashutosh uses as a picture. But a president with an onyx dial looks really nice too!

Ooooh! What decisions you'll have to make!

President · 7 May 2007, 07:30 AM

Quote:

Originally Posted by robm

My watch does have the 'T SWISS MADE T' markings. I guess it is time to get a 2nd watch!

TT Daytona or President??? I really like the watch Ashutosh uses as a picture. But a president with an onyx dial looks really nice too!

DD/Prez IMHO

mikey · 7 May 2007, 07:50 AM

JJ, I hav elost 11 pounds so far. Peter Parker is just a doughnut away from snapping his web!

JJ Irani · 7 May 2007, 07:58 AM

Quote:

Originally Posted by mikey

JJ, I have lost 11 pounds so far. Peter Parker is just a doughnut away from snapping his web!

Good on you, Mikey!!

Keep it up....err, keep it down!!

6 May 2007, 11:45 AM	#1
robm "TRF" Member Join Date: Jan 2007 Location: colorado Posts: 262	Were my hands meant to glow I have a two-tone datejust. I bought it new from an AD in 1987. Where the hands ever meant to glow? Both the hour and minute hands have white markings. I don't think they ever did. They certainly don't now. How many years do the hands glow? Rob

6 May 2007, 11:55 AM	#3
Alcan 2024 Pledge Member Join Date: Nov 2006 Real Name: Al Location: Way Up North Watch: your P's & Q's Posts: 10,473	*"Were my hands meant to glow"* No. The hands on your watch, however, were designed to glow in the dark for 12 - 15 years after which the tritium gave up. If your hands glow, I'd suggest immediate medical attention! __________________ Member #1,315 I don't want to get technical, but according to chemistry alcohol IS a solution!

6 May 2007, 02:12 PM	#6
LMP "TRF" Member Join Date: Apr 2007 Real Name: Lawson Location: Santa Fe, NM Watch: GMT's, Subs, OQ's Posts: 152	Rob, Tritium is a weak beta emitter with a half-life of a little more than 12 years. There is perhaps approx. 30% of the original Tritium left on your dial markers and hands. Below the 6 o'clock dial position you should see 'T SWISS MADE T' or similar, indicating Tritium activated phosphor. I have a 1991 TT Date which has lost virtually all of its phosphorescence. LMP

6 May 2007, 05:07 PM	#7
mike "TRF" Member Join Date: Jul 2005 Posts: 22,683	Yeah, as was mentioned tritium has a half-life of about 12.5 years. Tritium itself does not glow, but rather "excits" the phosphors in the paint matrix to glow. Tritium was outlawed from watch dial around 1998.

6 May 2007, 05:52 PM	#8
mikey "TRF" Member Join Date: Oct 2006 Location: USA Watch: Oysterdate 6694 Posts: 2,713	Why was tritium outlawed? I have the T-Swiss Made-T on mine.

7 May 2007, 01:18 AM	#10
mikey "TRF" Member Join Date: Oct 2006 Location: USA Watch: Oysterdate 6694 Posts: 2,713	Radioactive? Does this mean I will have radioactive blood like Spiderman?

7 May 2007, 05:32 AM	#14
robm "TRF" Member Join Date: Jan 2007 Location: colorado Posts: 262	My watch does have the 'T SWISS MADE T' markings. I guess it is time to get a 2nd watch! TT Daytona or President??? I really like the watch Ashutosh uses as a picture. But a president with an onyx dial looks really nice too!

7 May 2007, 07:50 AM	#17
mikey "TRF" Member Join Date: Oct 2006 Location: USA Watch: Oysterdate 6694 Posts: 2,713	JJ, I hav elost 11 pounds so far. Peter Parker is just a doughnut away from snapping his web!

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