Trilobe Une Folle Journée Une Folle Journée | Grail Atlas
Trilobe
Une Folle Journée
Ref. Une Folle Journée
2019–present · 40mm · caliber Trilobe in-house disc-display movement -- manual-wind; time shown via three rotating discs (hours, minutes, seconds) rather than hands; ROCS (Revolving Orbital Complication System) architecture; no conventional dial
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Movement tier: unclassified · caliber Trilobe in-house disc-display movement -- manual-wind; time shown via three rotating discs (hours, minutes, seconds) rather than hands; ROCS (Revolving Orbital Complication System) architecture; no conventional dial
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
40 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.
Not yet rated
Community + OSINT signals haven’t landed for this reference yet. We don’t publish a rating against zero signal — the number would mean nothing. Editorial body + caliber + market value still surface above; ratings appear once the signal corpus does.
Trilobe is a Paris micro-brand with minimal fake risk; condition disclosure on secondhand pieces is the primary concern.
Known issues in the market
Thin secondary market means pricing is inconsistent and condition claims may be generous.
Area
What to check
What is correct
Red flag
dial
Graduated dial coloring and texture
Even gradient from center to edge as specified, no surface inconsistencies, Trilobe text clean and correctly weighted
Uneven coloring, text that appears refreshed, surface texture that differs from production specification
case
Case finishing
Mixed finishing as per Trilobe specification; sharp case transitions, no evidence of buffing
All-polished surfaces indicating improper handling or buffing, tool marks on case sides or crown area
movement
Visible movement through exhibition caseback
Finishing consistent with Trilobe specification; rotor weight and decoration correct for stated caliber
Movement that does not match stated caliber specification
Common legitimate replacements
Authentication guide
Last reviewed June 2026
Paris-based Trilobe displays time via three rotating discs rather than hands. The disc system is fully mechanical. Smooth, continuous disc rotation is the functional test. No replica exists.
Known reproduction risks
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LOW
No known reproductions at this writing
The tri-lobe disc architecture is mechanically complex and brand-specific; no generic substitute exists
Provenance documentation from Trilobe Paris is the clearest verification path for high-value secondary market purchases.
Dial variants by era
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Era
Description
Identifiers
Une Folle Journée production
Three rotating transparent or sapphire discs displaying hours, minutes, and seconds. 40mm, manual-wind.
