The Classique 5157 with Breguet regulator display is a specialist collector piece; secondary prices are firm among those who specifically seek the regulator layout and Breguet's historical connection to the concept.
Editorial estimate, 2026 Q2. Actual prices vary by condition, date, and box/papers status.
Versatile size: fits most wrists (6–7.5 in / 15–19 cm)
38 mm case. The sweet spot for the broadest range of wrist sizes. Neither too dainty nor too bold.
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Regulator dial layout has a specific subdial arrangement; any deviation from hours-at-12, seconds-at-6 is wrong.
Known issues in the market
Non-regulator Classique dials swapped in, replacing the regulator layout with a standard time display.
The regulator configuration is sometimes misidentified in listings; confirm the subdial positions before purchase.
Area
What to check
What is correct
Red flag
dial
Regulator subdial arrangement
Hours subdial at 12 o'clock; central minute hand; seconds subdial at 6 o'clock; no combined hour-minute display
Hours and minutes on the same hand; subdial at 9 instead of 12; standard Classique time display
dial
Guilloché and regulator indices
Guilloché consistent with Classique 5157 specification; regulator-specific chapter ring on hours subdial
Standard Classique chapter ring without regulator configuration; non-guilloché dial
movement
Cal. 502.3 DRPH hand-wind
Hand-wind crown engagement; 80-hour power reserve; no rotor visible through exhibition caseback
Auto-winding feel at crown; rotor visible through caseback indicates movement swap
Common legitimate replacements
Cal. 502.3 DRPH is hand-wind only; automatic movement swaps are immediately detectable via crown feel and caseback inspection.
Regulator dials are reference-specific; a standard Classique dial cannot be converted to a regulator configuration.
Expert resources: Breguet Classique 5157 documentation at breguet.com. WatchUSeek Breguet forum for regulator dial variant identification.
Authentication guide
Last reviewed June 2026
The Classique 5157 is Breguet's perpetual calendar Classique: it adds a perpetual calendar display to the off-center dial layout. Four calendar complications displayed simultaneously make the dial the most information-dense of the Classique line. Authentication follows the same guilloché and hands standards as the 5177, with additional focus on the calendar display mechanism.
Known reproduction risks
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HIGH RISK
Annual calendar mechanism misrepresented as perpetual
Calendar requires manual February correction -- annual calendars correct automatically for months with 30 days but not for February
No leap year indicator on the dial (genuine perpetual 5157 shows leap year display)
MEDIUM
Guilloché quality shortfall
Flat or printed guilloché pattern
Rough aperture edges under 5x magnification
Dial variants by era
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Era
Description
Identifiers
All current production
Silvered or champagne guilloché dial with off-center time display at 12, day/month apertures and date pointer at lower portion, and moonphase at 6 on some variants.
Off-center time display in upper dial register
Perpetual calendar: day-of-week aperture, month aperture, date via pointer or sector display
Leap year indicator present on dial
Guilloché background: rose-engine hobnail or barleycorn pattern, same quality standard as 5177
Secret Breguet signature between 12 and 1 o'clock visible with loupe at 10x
Blued steel Breguet hands on the time sub-dial
Service part flags
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Perpetual calendar mechanism
Original: Cal. 502.3DR perpetual calendar. The mechanism advances automatically through months of different lengths and leap years without manual correction. All calendar indicators should jump instantly at midnight.
Replacement tells
Calendar that requires manual month correction at end of any month (perpetual calendar should handle February without adjustment)
Calendar indicators that advance sluggishly rather than jumping cleanly at midnight
Any calendar indication (day, month, date, leap year) that is misaligned with the actual calendar date
Guilloché dial
Original: Same rose-engine standard as the 5177. Multiple apertures in the dial for calendar displays must be cleanly finished at their edges.
Replacement tells
Aperture edges that are rough or show machining marks under 5x magnification
Flat or printed guilloché in the areas surrounding the calendar apertures
Case back markings
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All production
"BREGUET" and serial number on exhibition caseback rim
Cal. 502.3DR or variant engraved on movement plate
Reference 5157 and material code on caseback
18k gold hallmarks on case and caseback
Movement tells
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Perpetual calendar service requires resetting all calendar displays after reassembly; post-service, verify the calendar against the actual date in all four indications
Running the calendar forward through a full year cycle (possible on the bench) verifies the perpetual mechanism is correctly timed
