60s vintage watch mens Zenith manual wind cal. 40-T serviced

Case:
o   All in stainless steel with marks and scratches all over, polished, ref. 9719410
o    Fine condition with strong geometry
o   35.5mm without crown / 44mm lug to lug  / 8mm tickness /  19mm lug width
o   New generic plexiglass 
o   New generic crown

Movement:
o   Mechanical manual wind Zenith cal 40-T -  serviced by watchmaker on May 2025
(movement was disassembled, washed, lubricated) - photo of timegrapher

 
Dial & Hands:
    o  Evident marks / dots

Bracelet Material: 
  o New 19mm dark brown leather with generic chromed buckle
 
Conclusion / Condition: 
Elegant vintage zenith in great working condition..

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...
Keep in mind that it is a vintage watch, it is normal to be 1/2 minute early or late
wrist-treasure