30's vintage watch Omega Art Deco ref. CK 615 Scarab style cal. 26.5 SOB

From 1935 pre WWII this rare Omega Art Deco ref. CK 615 Scarab style with fancy lugs, recently serviced by watchmaker..

Case:
o    Stainless steel fixed lugs serial 9220143 with some scratches and marks 
o    Fine condition with strong geometry
o   30.5mm without crown / 40mm lug to lug  / 9mm tickness /  17mm lug width
o    Plexiglass in good condition 
o    Original crown
 

Movement:
o    Mechanical manual wind cal. 26.5 SOB serial 8401887 -  serviced by watchmaker on July 2021
(movement was disassembled, washed, lubricated) 
despite having been reviewed by the watchmaker at this moment it advances 90 seconds every 24 hours, we did not want to replace parts to preserve the originality of this rare collection piece, for an 86 year old watch these time discrepancies are acceptable.
 
 
Dial:
    o Untouched with evidente signs of age, arabic numerals
 

Bracelet Material: 
  o New 18mm black in leather with generic buckle, open end links
 

Condition: 
A rare distinct piece in working condition, hard to find today
 

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...