A Chrono24 dealer updates his 5711/1A ask every 47 minutes in peak hours. Most flippers refresh their pricing sheet 2x a day. That is why the spread between Chrono24, WatchBox, and Bobs sits in plain sight — and almost nobody catches it. Three pricing clocks, one reference Each marketplace runs on its own refresh cycle: Chrono24 : global dealer feed, fastest. WatchBox : curated trade-ins, lags 1-3 days. Bobs Watches : US retail walk-in, lags 5-7 days. Same 116500LN, three different price clocks running side by side. The 60-second method Pull the lowest unworn-condition listing on each platform. Filter to the same reference and year. Flag any pair where the cross-platform delta is >7% net of fees. That is your shortlist. Everything else is noise. A worked example Last week: 5711/1A blue dial, 2022, full set. Chrono24 low: EUR 98.4k WatchBox: EUR 107k Bobs: USD 119k retail Net of 6.5% C24 fee plus shipping and transfer, the C24 → WatchBox spread cleared EUR 5.8k. 90 seconds to find. 6 days to close.…