Special occasion today. My mother celebrates her 70th birthday. This cal 481 UG tri-compax should be right about the same age. Cheers!
Date change via the jump hour feature....no interruption to minute or seconds...more common today but not in 1976! YaY!
knock around Parnis aviator with ETA mechanical movement today....as I spend my morning providing roadside service to my teenage son who seems to have run over a box of nails.