Thought it woud be interesting to see posts of UG movements from our favoirite pieces. A look under the hood at a Universal Geneve Cal.125 (Valjoux 23) - the power-pack for the iconic UG Uni-Compax "Big Eye" Ref. 884100/02 & /01 (1963-1965)
From a recent service on my Tri-Compax, caliber 481... (pics from RGM in Mt Joy, PA and my Instagram feed).