Life off the grid in the SW Texas desert. An experiment in sustainable living. NUMBERS AT THE END OF EACH BLOG POST: temp at 8PM,high temp,low temp,rainfall,wind conditions(CalmBreezyWindyGusty). YouTube Channel https://www.youtube.com/c/TheFieldLab
Daily live streams at https://www.youtube.com/thefieldlab/live
Rita B...you are right! This is a Waltham Army Air Corps stop watch for calculating ground speed during WWII. The outer dial is 10 seconds. They used these as they passed over known landmark distances so they knew how fast they were going regardless of wind speed and direction - in the days before GPS. These mechanical watches run at an amazing 40 bps for precise timing.
Which watch is worth about $300 if I can get it running?
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteUpside down dial?
ReplyDeleteTop left... 1 - 9??? what happened to 10, 11 and 12?
ReplyDeleteRita B...you are right! This is a Waltham Army Air Corps stop watch for calculating ground speed during WWII. The outer dial is 10 seconds. They used these as they passed over known landmark distances so they knew how fast they were going regardless of wind speed and direction - in the days before GPS. These mechanical watches run at an amazing 40 bps for precise timing.
ReplyDeleteThat's very cool John! I hope you get it working again. If not you, then someone else might love to have it in their collection.
ReplyDelete