About Chronomarket

What we do

Chronomarket aggregates watch listings from multiple marketplaces and enriches them with structured data. Our crawlers collect listings from Reddit, Chrono24, eBay, Etsy, Catawiki, Watchfinder, and Grailzee. Each listing is processed to extract brand, model, condition, and pricing — so you can search and track watches in one place.

Instead of checking seven different websites every day, you get a single searchable feed with consistent formatting. Filter by brand, model, price range, case size, or source — and find what you're looking for in seconds.

Alerts

An alert rule is a saved search that runs automatically — you define brand, model, price threshold, and trigger type, and we email you when a listing matches.

Alerts let you automate your watch hunt. Define what you're looking for and we'll monitor all sources for you — when a match appears, you get an email immediately.

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New listing alert

Get notified when any new listing appears matching your brand and model. Ideal for tracking specific watches across all marketplaces at once.

Example
notifications_active New listing match
Omega Speedmaster Professional $4,200 · Chrono24 · Just now
price_check

Below fixed price alert

Set a maximum price and get notified only when a listing drops below it. Perfect when you know your budget and want to wait for the right deal.

Example
notifications_active Price alert triggered
Rolex Explorer I $6,800 (your limit: $7,000) · eBay
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Below market value alert

We calculate the 3-month average price for your brand and model. Get notified when a listing appears at a set percentage or dollar amount below market value. Great for deal hunters.

Example
notifications_active Below market value
Tudor Black Bay 58 $2,900 · 12% below avg ($3,295) · Reddit

Alert frequency depends on your plan — from every 60 minutes (Free) down to every 3 minutes (Pro). View plans →

Want to get the most from your alerts? Read our alert strategies → for tips, trade-offs, and recommended setups.

Alert strategies

Getting the most from your alert rules takes a bit of strategy. Here are common approaches, their trade-offs, and tips for each.

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Cast a wide net first

Start with a new listing alert for your target brand + model with no price filter. This ensures you see every listing as it appears — you won't miss a deal while waiting for a specific price.

lightbulb Best for popular models (Rolex Submariner, Omega Speedmaster) where listings move fast and underpriced ones sell within hours.
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Fixed price — know the risk

A below fixed price alert only fires when a listing appears under your target. This is great for patience-driven buying, but be aware: if a watch is listed at $50 above your limit and sells quickly, you'll never know it existed.

warning Set your price limit slightly above your true max. A $100 buffer can be the difference between catching a deal and missing it entirely.
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Below market value — data-driven deals

This trigger uses the 3-month average price. Set a threshold like "10% below average" and you'll only be notified about genuine deals relative to the market — not just cheap-looking listings.

lightbulb Combine with a broad model search. For example, alert on "Tudor Black Bay" (no specific reference) at 15% below average to catch any Black Bay variant that's underpriced.
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Layer multiple rules

Don't rely on a single alert. On the Collector plan (5 rules), a strong setup might be:

  • Rule 1: New listing alert for your primary target (e.g. "Rolex Explorer I")
  • Rule 2: Below market value alert for the same model at 10% under average
  • Rule 3: New listing alert for a secondary target (e.g. "Omega Seamaster")
  • Rules 4-5: Below fixed price on opportunistic buys you'd grab at the right number
lightbulb This layered approach ensures you catch both the specific watch you want and opportunistic deals on others.
speed

Check interval matters

On Starter (30 min checks), you'll see listings within half an hour. But popular watches on Reddit or eBay can sell in minutes. If you're hunting competitive models, the Pro plan's 3-minute interval gives you a real edge.

warning A $7,000 Submariner listed 15% under market won't last long. Fast check intervals mean the difference between "just bought" and "already sold".
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Manage your notification budget

Each plan has a monthly notification cap. If you set a broad "new listing" alert on a popular brand, you'll burn through notifications fast. Be specific with your model to keep the signal-to-noise ratio high.

lightbulb If you run low, you can buy extra notification packs from your account panel. Pro plan users get 10x more per dollar.

Data quality

Our data is gathered from many formats — Reddit posts, marketplace listings, auction pages — each with different structures and conventions. We use LLM/AI to extract, normalize, and unify this information into consistent fields (brand, model, price, condition, etc.), so you can search and compare across sources.

While we strive for accuracy, automated extraction may occasionally miss or misinterpret details. Always verify listing information on the original marketplace before making a purchase.

Sources

Listings are collected from these marketplaces:

Would you like a new source added? Contact us at [email protected].

Supported brands

We only include listings that match known watch brands. Listings are filtered for relevance and price.