ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins63% CONFIDENCEOverall confidence: 63%How well the pin's source and references back up its dates.Weighted average of how firmly 3 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: Wikipedia's[1] G-Shock article says 'in April 1983, the first G-Shock, the DW-5000C, was launched' and gives 'Introduced April 1983' with no day, so the month's last day is used; Casio[2][3] itself says only '1983'.Casio launched the DW-5000C in April 1983, the first G-Shock, a shock-resistant digital watch that began a line now past 100 million sales.
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