Lemania chronographs from Omega, Tissot and Heuer

Looking at a selection of watches - and their extended family - which contain Lemania 873 chronograph movements. Lemania was a famous movement and watch maker which at various points was absorbed by other companies.
Watches being featured (all 9 of them):
* Omega Speedmaster 145.012-68, 145.022-71 and 145.022-76
* Heuer Carrera re-editions CS3110 and CS3111, and their sister automatic WS2113
* Tissot PR-516 40528-1X and -2X, and their sibling automatic 46622-3X
The technique for removing stuck case backs that I used on the Tissot, is documented on www.vintagewat...