The 43mm Master Grand Tourbillon utilizes the automatic caliber 978, with the tourbillon escapement prominently displayed at the 6:00 position. Reference 16634E0 is crafted with a white gold case and a blue enamel dial enhanced by gold and silver dust.
Movement Type
Automatic
Caliber
978Jewels
33
Reserve
38
Frequency
28800
Hands
Center Seconds
Shape
Round
Material
White Gold
Glass
Sapphire
Thickness
13.30 mm
Diameter
43.00 mm
Water Resistance
50.00 m
Dial Color
Blue