A notable mention is the Calypsomatic reference 3552.  While many people have never heard of this reference the community found that it does exist and is quite confusing to date.  I chose not to go deep into this reference because it does not have a gilt dial.  The print is silver with the early style large logo and "Titus", it can have a lollipop or mercedes hand, a non drilled lug-hole case, a 7085 big crown and a 3552 engraved case-back.  It appears to share parts within the range of the early 7085 and 7986.  Now this could simply be a service parts watch but that wouldn't explain the unique numbered case-back unless Titus issued a new case-back from service.  Or it could just be a reference Titus simply never intended to produce but just wanted to assembles parts they had left over and create a quick reference to cash out.  It certainly feels incomplete and unoriginal to just mash together parts.  Something worth noting is that in the 70's Titus was struggling as a brand and was later acquired by a Hong Kong based company.  Maybe this is Asia's version of a last ditch effort Calysomatic? I only have seen a few of these over the years so it remains a mystery.  

Notice the large logo and Titus on the dial but its in silver and not gold. "T swiss made T" is at the bottom of the dial.  Generally these dials did not age well and the lume degraded poorly. 

Notice the large logo and Titus on the dial but its in silver and not gold. "T swiss made T" is at the bottom of the dial.  Generally these dials did not age well and the lume degraded poorly. 

Ref. 3552 on the case-back but not between the lugs. 

Ref. 3552 on the case-back but not between the lugs. 

Strangely no marks on the inside case-back

Strangely no marks on the inside case-back

Large bullet style crown take from the 7085

Large bullet style crown take from the 7085

No drilled lug-holes with a slightly different overall shape case.

No drilled lug-holes with a slightly different overall shape case.