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Help identify Tachy rings https://www.breitlingsource.com/phpBB2/viewtopic.php?f=11&t=56247 |
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Author: | P51 [ Thu Dec 11, 2014 2:51 am ] |
Post subject: | Re: Help identify Tachy rings |
Would these be Omega scales? The first is a Decimal Scale. Used for Industrial timing operations, stat analysis, calc. of averages, cost prices, etc. The minute is divided into 100 equal parts. If you are measuring processing, then calculations in 100ths might be an advantage. The second is a Pulsometric Scale. To register rate of pulse per minute without calculations. If you start the centre second at the beginning of an observation and stopped when the number of pulsations is reached. The pulse/minute can be read on the scale at that stage. Why that is important, I have no idea! The above comes from an Omega guide I have explaining all of the scales they used during the 1960's. Hope that helps. |
Author: | WatchFred [ Thu Dec 11, 2014 3:15 am ] |
Post subject: | Re: Help identify Tachy rings |
do you have dimensions, David ? |
Author: | WatchFred [ Thu Dec 11, 2014 3:16 am ] |
Post subject: | Re: Help identify Tachy rings |
can't think of a potential B besides the 2000/3/4, but they seem too big & I've never seen those w/ a pulsations ring. checking, tachy printing is wrong for the 2000/2/3/4 |
Author: | buddman [ Thu Dec 11, 2014 8:14 am ] |
Post subject: | Re: Help identify Tachy rings |
WatchFred wrote: do you have dimensions, David ? I dont. they were offered for sale to me and was told they belonged to a Breitling, but i didn't recognize them, and no one here seemed to now quire readily, so I passed. I can put you in touch with the seller if they suit your needs at all. DB |
Author: | WatchFred [ Thu Dec 11, 2014 8:18 am ] |
Post subject: | Re: Help identify Tachy rings |
always interested, but looks like a loooong shot ![]() but if he's realistic about pricing ...... |
Author: | rat [ Thu Dec 11, 2014 9:06 am ] |
Post subject: | Re: Help identify Tachy rings |
It is not that common, but there was a pulsations bezel variant for speedmasters ![]() |
Author: | P51 [ Thu Dec 11, 2014 12:01 pm ] |
Post subject: | Re: Help identify Tachy rings |
Yes. I think they are both omega bezel insert scales. 50% of a group of 4 available a long, long time ago. Both are special scales for limited applications. |
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