Recently received in trade this Speedy Pro Moonphase (Ref. 3575.20.00) in near-pristine condition with full kit. Manufactured sometime between 1999 and 2003 (Serial 7,7xxx...) according to authoritative sources.
Many positive attributes of the Speedy Pro Moon Watch, including the legendary chrono sub-registers, central chrono seconds hand, cal.1861-based manual movement (cal. 1866 in rhodium finish) and 42mm case.
Distinguishing features include a date/moonphase sub-register at 12 o'clock (hence the modified cal. 1861), two corrector portholes on the left flank for date/moonphase adjustment, broad arrow blued hands and raised blued hour-markers, an eggshell/ivory dial, a solid 18K white gold bezel, and a high-domed sapphire crystal which resembles the domed hesalite on the Speedy Moon. Came with its factory 1998/849 bracelet which wears incredibly comfortably.
Compared with the traditional Speedmaster Moon, the 3575.20.00 is more difficult to find, especially in pristine condition with full kit, as their production run was relatively time-limited and their distribution seems to have been more prevalent in the Asian market although not certain of that. While not a substitute for the iconic Speedy Moon, it's nevertheless an uncommon beauty probably worthy of the considerable praise it has drawn, including from Tim Mosso of Watchbox who describes it as a 'rare bird', 'semi-exotic', 'fascinating hybrid' (see Tim's review at https://www.youtube.com/watch?v=Oa_Moy9a-ho). It also looks equally at home with jeans or a business suit.
Among the most interesting features of this model is how even slight shifts in reflective lighting or angle subtly change the hues of the dial elements, making the dial-surface appear anywhere from ivory to beige to silver to white, and the hands, applied hour-markers and moonphase disk a colorful range from teal to blue to even mauve. A good example of these subtle color shifts is seen in the attached images.