That Watch

That Watch is the precision-crafted companion for watch collectors. Catalog your collection, log every wear, measure accuracy like COSC, and discover insights you never knew about your watches.


VAULT — YOUR DIGITAL COLLECTION
Add watches by searching our catalog, use Smart Search to identify any timepiece instantly, or add manually. Store full specs, multiple photos, purchase details, and custom names. Mark special and limited editions with their edition number. Organize watches into Watchboxes and share them as beautifully designed cards.


COLLECTION VALUE — WHAT IT'S ALL WORTH
Record what you paid, the list price, and what you believe each watch is worth today. Your collection total is a single figure in your own currency — no exchange rates, no guesswork — and every watchbox shows what's inside it. Where you haven't set a value yet, we fall back to catalog pricing and tell you exactly how many watches the total covers.


PART WITH A WATCH, KEEP THE RECORD
Sold, gifted, or simply put away — mark it and the watch keeps everything. Wear history, photos, and purchase details all stay intact, and a sold watch shows the gain or loss against what you paid. Your vault shows what you own now; your history shows everything you've owned.


WRISTCHECK — EVERY WEAR, TRACKED
Log which watch you wear each day. View your history on a week strip or full month calendar. Build streaks, track rotation, and see your diversity score — a measure of how evenly you wear your collection.


ACCURACY — EVERY SECOND, MEASURED
Measure your watch's accuracy with a tap-based interface inspired by professional COSC testing. Track rate by position (dial up, dial down, crown up, and more), view offset and rate charts over time, and see how your watches perform against chronometer standards.


STATS — KNOW YOUR COLLECTION
Eight detailed analytics categories reveal your collection from every angle:

• Collection Overview — total watches, brands, and collecting history
• WristCheck — wear patterns, streaks, day-of-week habits, rotation suggestions
• Money Market — total paid against current value, plus realized gains on watches you've sold
• Watch DNA — case materials, dial colors, size profile across your collection
• Mechanical Soul — movement types, power reserve, frequency distribution
• Aqua Rating — water resistance breakdown and your deepest diver
• Time Capsule — production years, decade distribution, oldest to newest
• Accuracy — cross-collection rate tracking and COSC compliance

BUILT FOR COLLECTORS

• Offline-first — your collection lives on your device, syncs when you're ready
• Smart Search — AI-powered watch identification by brand and reference
• Multiple photos per watch with cover photo selection
• 8 currencies supported (USD, EUR, GBP, CHF, JPY, INR, CAD, AUD)
• 5 languages (English, German, Italian, French, Japanese)
• Sign in with Apple, Google, or email
• Haptic feedback throughout for a tactile experience
• Dark luxury interface designed around your watches

THAT WATCH PRO
Unlock the full experience with That Watch Pro:

• Unlimited watches in your vault
• Unlimited watchboxes
• 15 Smart Search credits every month
• Full accuracy tracking
• Complete stats and insights
• Shareable watchbox cards — three visual styles, three formats
• Data export

Subscription options:
• Monthly: $4.99/month
• Annual: $34.99/year

Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscription in your Apple ID account settings. Any unused portion of a free trial period will be forfeited upon purchasing a subscription.

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