Breitling
LB2120171C1P1 Premier
round
cambered sapphire, glareproofed on both sides
screwed platinum, sapphire crystal
platinum
42 mm
22 mm
up to 10 bar (100 meters)
15.25 mm
blue
Super-LumiNova® luminescent hour and minute hands
tourbillon chronograph, column-wheel, horizontal clutch, 1/4th second, 60-minute counter
approx. 55 hours
self-winding mechanical
Breitling Manufacture Caliber B21 (Manufacture La Joux-Perret)
hour, minute, second
alligator leather strap
black
18 k white gold folding buckle