As of 2026-08-18, the 131.20.29.20.53.002 trades between £7.29k (Hong Kong) and £8.33k (Japan) across 2 verified markets — medians of 55 live listings, evidence-counted, converted at rates of 9 Sept 2026, 00:02.
Every CALIBRÉ watch travels with its Passport — the complete evidence file, delivered before you pay in full and yours for the life of the watch. It transfers with the watch when you sell.
CALIBRÉWatch Passport
Serial58F2 ✱✱✱✱ 91
ReferenceNautilus 5711/1A
Inspected by✱✱✱✱✱✱✱
Inspection date02 · 08 · 2026
LocationMumbai, India
Buyer code✱✱✱✱✱
How every watch is verified
01Every engraved number, cross-checked
Every number the maker engraved — case, movement, fittings, papers — read against the others. Which exist depends on the maker and the year, and we know which. A fake is built for the outside. Numbers that all have to agree is where it comes apart.
02Your private code marks every photo
You choose a code after you enquire. Neither we nor the holder have it until you send it. Hand-written beside the watch, in every capture and throughout the video. Nothing in your file can predate you, come from an old listing, or belong to another watch.
03Documented where the watch sits, in one session
Where the watch sits — never in transit, never after other hands. Every code photographed legibly. Macro across the printing, markers, hands and case finishing, where a copy reads soft and a real one reads crisp. Every mark photographed rather than described. Verification comes to the watch. The watch doesn't travel to be verified.
04One unbroken video — impossible to swap watches
A single continuous turn of the watch, its numbers and your code visible throughout, plus the bracelet and clasp moving. A continuous take carrying your code is what makes it impossible to document one watch and ship another. The video is the spine the file hangs on.
05Matched against the factory's own record
The set is compared to what the maker built that year — production range, dial and handset, bezel and bracelet variant, the code formats correct for that period and market. Every part must belong to the same watch from the same year. Anything unexplained stops the piece. Nothing is averaged out.
06The full file, defects first, before you pay
The complete file reaches you before payment is discussed, including a written schedule of every mark, every deviation and every part that isn't original. Send it to any watchmaker you choose, anywhere, at our cost. Nobody hiding something shows you the flaws first.
07The record is yours — and transfers when you sell
Every capture, the video, the comparison and the defect schedule, bound to the watch and kept. Yours, not ours — and it transfers when you sell. A reference carrying a complete record clears faster, and higher, than the same one without. Behind it, a lifetime guarantee: full refund plus return costs, no expiry. Evidence without consequence is marketing.
∴Why this holds
Every number reconciling to one production record. Print and finish under magnification. Every part belonging to the same watch from the same year. One unbroken take carrying a code you invented after you asked. The evidence is yours to examine, and yours to have examined by anyone you trust, before you pay. And if we are ever wrong, you are made whole in full, for as long as you own it.
