I went to the OldWorld website, and we can confirm that this one is 3336, rather than 404, because (a) movement is Valjoux 22 and (b) case-back is "hex" style. The Reference 404 would have Valjoux 23 (smaller) and slotted / notched case-back.
Jeff
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: Is Hans sure on that one Jeff? The pushers may well say 3336 but to
: me the markers and to a lesser extent the crown don't. We see
: the 404 with those stubby markers and early 2444s too, but the
: 3336s are always shown with the longer stick markers.