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The place for discussing 1930-1985 Heuer wristwatches, chronographs and dash-mounted timepieces. Online since May 2003.
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Sebring -- Tritium / Radium

Both of these are the earlier models; compare location of the pushers between the earlier models and the later models (as shown below -- earlier one on the left).

In your posting, regarding the one on the right, with no "T" marking -- simplest explanation is that the dial uses radium; Gieger counter would be the way to check that. Also possible that the "T" marking was inadvertently left off the dial, but that seems less likely.

Pass the Geiger counter over the timer and let us know what happens.

Thanks for your posting,



: I recently acquired these nice Sebring dash timers and had a
: question. From on OnTheDash, I know these are from the 1960's.
: However, one has T25 tritium mating but the other doesn't.
: Thought that was interesting and wanted to see what people
: though--could it be a service dial? Any opinions/insight
: appreciated!


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