The 2025 Premier B21 Chronograph Tourbillon 42 Limited Edition (RB21204A1C1P1) is a 75-piece North American exclusive featuring an 18K red gold case and a blue gradient dial. It houses the automatic Caliber B21, which pairs a column-wheel chronograph with a one-minute tourbillon, offering a 55-hour power reserve viewable through a sapphire case back. The watch is finished with a brown alligator strap and an 18K red gold folding clasp.
Movement Type
Automatic Chronograph
Caliber
Caliber B21Jewels
47
Reserve
70
Frequency
28800
Hands
Small Seconds
Shape
Round
Material
Red Gold
Glass
Sapphire
Diameter
42.00 mm
Water Resistance
100.00 m
Dial Color
Blue
