Used , but still in good condition,  ROTARY SWISS COMMANDO.
Running in good condition.
The case has minor signs of use and is approximately 38mm in diameter without crown and approximately 41mm with crown. 
Screwed crown. 
Unidirectional bezel with 60 clicks.
Mineral glas, in very good condition .
Black dial, in very good condition also  .

The movement is ETA 251 272, with 22 jewels and he runs very well.
The chronograph function works very well.
The strap is leather, hand made.

For any question, feel free to mail me  !
Thank you  !