Condition affects price
Pre-owned watches trade across a wide condition spectrum. These ranges are typical for the secondary market.
Full condition grading guide →
Market price
The Traditionnelle Complete Calendar brings day, date, month, and moon phase to the grand-feu enamel dial format; secondary prices are firm among collectors who value the combination of complications and traditional finishing.
Editorial estimate, 2026 Q2. Actual prices vary by condition, date, and box/papers status.
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Authentication
Confirm the moon disc shows the correct phase and verify all stylus correction holes on the caseback are unobstructed.
- Blocked caseback correction holes indicate a replacement caseback not machined for this reference.
- Moon disc showing incorrect phase relative to actual moon requires a moon phase correction via the stylus.
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| dial | Four-aperture complete calendar display | Day, date, month, and moon phase apertures all visible and reading correctly; moon disc in correct phase | Any aperture obstructed, misaligned, or showing incorrect indication |
| caseback | Stylus correction holes | All correction holes for the complete calendar visible and unobstructed; stylus access confirmed | Any blocked correction hole; incorrect caseback machining indicates replacement caseback |
| case | No external pushers on the case | Smooth case sides with no pushers; all calendar correction via caseback stylus holes only | Any external pusher on the case sides; Traditionnelle complete calendar uses only caseback correction |
- Incorrect caseback is a known issue; verify all stylus holes are present before purchase.
Authentication guide
The Traditionnelle Complete Calendar displays day, date, month, and precision moon phase simultaneously. It is a complete (triple) calendar, not an annual or perpetual: unlike an annual calendar, it requires manual correction at every month shorter than 31 days, not just February. The moonphase accuracy and the guilloche dial are the primary authentication anchors.



