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105.003-65

I understand the Tachymetre and Pulsations bezels, but what's the original purpose of the 20km bezel on yours?
 
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I understand the Tachymetre and Pulsations bezels, but what's the original purpose of the 20km bezel on yours?

Hi, thanks for your reply. This telemetric bezel is graduated to indicate the speed in air. It allows the user to calculate the distance between the observer and a situation that is observable both visually and audibly. It was mainly used for military purpose and weather situations. For more details please see Chronomaddox.com/4bezels.

My watch was delivered to RCAF in july 1966, so probably for military use. Best regards !
 
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Hi, thanks for your reply. This telemetric bezel is graduated to indicate the speed in air. It allows the user to calculate the distance between the observer and a situation that is observable both visually and audibly. It was mainly used for military purpose and weather situations. For more details please see Chronomaddox.com/4bezels.

My watch was delivered to RCAF in july 1966, so probably for military use. Best regards !
For the uninitiated among us: See the flash, start chronograph. Hear the noise, stop chronograph. Wherever the pointer is lined up on the tachy indicates how far away the flash originated.
 
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Hi, thanks for your reply. This telemetric bezel is graduated to indicate the speed in air. It allows the user to calculate the distance between the observer and a situation that is observable both visually and audibly. It was mainly used for military purpose and weather situations. For more details please see Chronomaddox.com/4bezels.

My watch was delivered to RCAF in july 1966, so probably for military use. Best regards !

Ah, of course! 20km/min = 1200km/h = Mach 1 give or take a tad. Very cool. But the URL you cited doesn't appear to be valid. 🙁

EDIT: Found the correct URL: http://chronomaddox.com/4bezels.html Thanks!
Edited:
 
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One has to wonder at the usefulness of it in an aircraft ca.1966 though - I wouldn't have thought you'd hear anything more than a kilometer or two away. But on second thoughts, this was during the Cold War so potential blasts were probably expected to be pretty loud!
 
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One has to wonder at the usefulness of it in an aircraft ca.1966 though - I wouldn't have thought you'd hear anything more than a kilometer or two away. But on second thoughts, this was during the Cold War so potential blasts were probably expected to be pretty loud!

Imo more for ground stuff. But take into consideration that most of the older (esp. the 40s/50s) chronos already had this feature. So there might be some reasons for Omega to offer that option for their speedies.
 
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Back on the wrist for Speedy Tuesday, this time on another cheap NATO that I picked up to see how I like it. It’s not grabbing me like the Martini did, but maybe it’ll grow on me.


Add the Omega 20mm buckle and it vastly improves any NATO (part 94512002)

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Broad Arrow for my first day (yesterday) of a consulting project in Tokyo
 
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On a consulting project too, with 38mm of vintage goodness. From 1952:
 
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So... finally, I landed a mint full kit Japanese Racing Speedmaster on my hit list for over a year. It’s a keeper!
Love the way the red hands pop on those beauties. Enjoy!
 
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1971 Special.

26104871903_cdc19e203c_b.jpg
Seiko made some elegant watches back then. Love my Lord Marvel Hi-Beat from '67
 
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It’s still Tuesday in the western hemisphere😉

Now there's an old fella who's seen some hard miles.

The watch, the watch. 😀