Messeplatz, Messe, Rosental, Kleinbasel, Basel, Basel-Stadt, 4058, Schweiz/Suisse/Svizzera/Svizra
Audemars Piguet
ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins65% CONFIDENCEOverall confidence: 65%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence
Estimated: sources say "Basel, April 1972: at the annual Swiss Watch Show ... Audemars Piguet introduced a luxury steel watch" without a day, so the last day of April is used.[1]Audemars Piguet introduced the Gerald Genta-designed Royal Oak Ref. 5402, a 39 mm steel watch with an integrated bracelet, at the Basel watch fair in April 1972 during the quartz crisis.
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