The Breguet Tourbillon Messidor ref. 5335PT/42/9W6 features a 40mm platinum case that holds the hand-wound caliber 558 SQ2.
Movement Type
Manual
Caliber
558SQ2Jewels
25
Reserve
50
Frequency
18000
Hands
Small Seconds
Shape
Round
Material
Platinum
Glass
Sapphire
Thickness
9.65 mm
Diameter
40.00 mm
Water Resistance
30.00 m
