What the data can — and cannot — tell you.

Each morning, around 6 am ET, we read the public online catalogues of independent pre-owned watch dealers whose websites allow it. We record asking prices, listing attributes and observed status changes. We do not copy dealer photographs; listing links take you to the dealer's own page.

An asking price is what a dealer advertises, not what a buyer pays. Prices vary with year, condition, dial, bracelet, and box and papers. Even when a dealer explicitly marks a watch sold, we know only its last asking price — never the agreed sale price.

Observed listing age counts days since ChronoPrices first saw a watch. It is not the dealer's own listing date. For watches already listed when tracking began on 03 Oct 2026, it is a lower bound: those watches may have been available for much longer.

Active listings

Includes active listings and those temporarily missing from our latest collection. A missing observation alone does not confirm an exit.

Removed listings / inventory exits

A removed listing has left the dealer's catalogue. Its outcome is unknown: removal is not a sale. Inventory exits can include removals and dealer-marked sales; we keep these categories separate.

Confirmed sold (dealer-marked)

Only a listing explicitly marked sold by its dealer belongs in this category. Confirmation describes the dealer's status label, not a verified transaction or sale price.

Listings are grouped by brand and reference number, with the model supplied in our reference data. A single reference can include different dial variants, production years and conditions. We do not assume that two watches sharing a reference are identical; compare individual listing attributes before pricing.

Tracking began 03 Oct 2026.

We show only collected observations. We never recreate earlier history or treat insufficient history as zero.

• After 30 days: a complete 30-day window of new listings, price cuts and inventory exits can support short-term comparisons.
• After 90 days: a longer window can support inventory turnover and asking-price versus time-to-exit analysis, where enough observations exist.
• After 365 days: a full year can support year-over-year comparisons where coverage is consistent.

These are history requirements, not release dates or guarantees. More days alone do not make every reference's sample sufficient, and time-to-exit does not mean time-to-sale.