Family: 18xx21 jewels50h power reserve18,000 vph (2.5 Hz)
The Breguet caliber 187B is a manual winding movement with a diameter of 42.86 mm and contains 21 jewels. It operates at a frequency of 18000 vph and has a power reserve of 50 hours, featuring a small seconds display and a tourbillon complication. This caliber powers the Classique Tourbillon 7357.
Last updated 8 Jul 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Jewel Count
21 jewels
Power Reserve
50h
Frequency
18,000 vph (2.5 Hz)
Diameter
42.86mm
Display Type
Analog
Winding
Manual
COMPLICATIONS
Tourbillon
FEATURES
Small SecondsHand Winding
QUICK FACTS
BRAND
TYPE
Manual WindingSTATUS
In ProductionMANUFACTURE
In-houseCALIBER FAMILY
18xxCOUNTRY
SwitzerlandALSO KNOWN AS
cal. 187B
FOR WATCH DEALERS
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