70s vintage watch mens Longines tonneau ref 4210 automatic cal L993.1 flat N.O.S

Case:
o   All in stainless steel,  ref. 4210 1 flat and tonneau shape, serial 18 28848, It still has a plastic seal on the lid
o   Fine condition with strong geometry
o   30mm without crown / 36mm lug to lug  / 7mm tickness /  19mm lug width
o   Original crown

Movement:
o   Mechanical automatic  25 jewels cal. L993.1 -  working well serial 53480180 25jewels

 
Dial & Hands:
    o  Untouched white with roman numbers

Bracelet Material: 
  o  New 19mm light brown croco leather with original longines buckle
 
Conclusion / Condition: 
elegant and classic piece in new old stock, not easy to find

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...