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I like that watch
This turned up in the post today - I have no idea what it is or does but it was cheap, looked cool and appealed to my inner child 馃榾
The outer scale is calibrated at 4km/s... that's the speed of seismic s-waves. There are two inner scales ... but not sure what they're calibrated at. (Isn't "ecoule" the French for school?). Well, if nothing else, you could probably work out where an earthquake's epicentre is if you knew a few more details.
Arrived today. Onyx Pie Pan 167.005. I lost my discipline when this went up for sale. I love these dials and dog leg cases. With its pain in the ass to set but lovely stablemate.
Thanks and also to Professor - I found out about Yema, just wasn't sure what a Meangraf was for or the two scales and symbols on inner scale... still it looked like something ripped off a flight deck and I picked it up for about $600 - closing auction late Sunday and no one had bid on it...
Here's a daytime shot - being worn now 馃榾
I didn't know the horological importance or the collectability of the cal p478