Up for sale is a beautiful Solvil Titus Calypsomatic ref 8031, which was made in the 60s. The watch features all of the best things from the 60s, which are cyclop, with red/blue date change alternatively, straight lugs and big crown. Such a gorgeous and collectible piece in general.
• Case size is 38mm, 48mm from lug to lug.
• Lug width is 20mm and 12mm in thickness.
• Using ETA 2472 movement, which was serviced and running well under +-10s/day. No quickset and hacking. 
• Original vase with some signs of usage. No big dents or deep scratches.
• No box or paper. Comes with a Titus bracelet that can fit up to 7.2 inches wrist. I have no idea if the bracelet is original to this watch so I treated it as a non-original one.