I made a mistake once on this
, my advise is don't bid for it, dial re-inked and over-inked (especially on the month dial), 9 o'clock subdial has an odd looking hand. Also a lot of martel 291 caliber out there in other brand, unless you see the movement, you won't know for sure (can be judged by the position of the word universal Geneve on the movement which you be aligned with the edge of the watch) hope this helps.
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