From 40's this Lemania military WWII era, manual wind cal. S27 (base calibre for the 27mm chronographs from Lemania and Omega) , recently serviced by watchmaker.. 

Case:
o    Stainless steel ref. 192 H , scratches and marks everywhere
o    Fine condition with strong geometry
o    31.5mm without crown / 39mm lug to lug  / 10.5mm tickness /  18mm lug width
o    New plexiglass (not original)
o    New generic crown

 
Movement:
o    Mechanical manual wind cal. S27 serial number 69181 -  serviced by watchmaker on April 2021
(movement was disassembled, washed, lubricated) 
base calibre for the 27mm chronographs from Lemania and Omega

 
Dial and Hands:
    o Untouched dial with evident marks of age, luminous radium in numbers and hands with some loss
 
Bracelet Material: 
  o New 18mm black nato style
 
Condition: 
Overall in very good condition working condition, a wrist piece full of history ...
 
please see photos as they are part of the description.
No box or pappers, no water proof test, sold as is, any question feel free for ask...