Produced in 1967-1969
The last of the calibre 321 speedmasters. In two identical executions, the -67 and -68. The -68’s seem to be very scarce, and I do not have any observed serials that I can confirm the range a -68 should fall into.
This reference was the last calibre 321 to be flown by NASA. At first glance it is similar to the preceding 105.012-66, though the pushers are larger at 5mm x 3.5mm, which is the same size as fitted to the new Speedmasters today. The case back remains a single step Hippocampus.
This is the most affordable 321 Speedmaster, and consequently it spend the longest time languishing in sub $1000 territory. (Some while ago now!) This value made them uneconomic to service, so care must be exercised in choosing one that has not been neglected.
I am sure all bezels were DO90. Most early watches have fitted spear chrono hands, but that it was on this reference we first see the flat ended spear toward the end of production. It appears that both these Chrono hands were fitted at the same time of production, or at least there is no saying which is correct.
The reference also came in a Black Racing Dial version. This is extraordinarily rare and the last examples seen at auction fetched over USD$75,000. I have seen, or heard of about 10 in total – and it is more murky as there are two dial versions. A non Professional AML, and a Professional printed logo as seen below. (Note: In May 2018 Phillips sold a professional version for approximately USD$40,000 with a damaged dial.)
There is also an Ultraman, fitted with an orange hand. I have heard there are about 50 in existence and they all fall in the 2607xxxx range. An Extract is essential when buying one. The one I own has a central orange hand that is 1mm too short – I know it is not original, as I fitted it with this Omega Service hand. The MWO authors cover Ultramen in depth here.
2406 xxxx – 27xx xxx
- applied metal logo
- Professional text
- Wide spaced SWISS MADE T’s
- Long indices
- Asymmetric case, 20 mm lugs
- Caseback- single step with speedmaster engraved on rear
- Hour/minute – baton
- Subdial – Stick, painted
- Chrono – spear, and square end spear fitted concurrently
- 5mm x 3.5 mm
- Black BASE 500 bezel with dot over 90 (DO90)