Portugieser Perpetual Calendar Collection_Longines Ultra‑chron while adding modern features

while adding modern features

Water resistance: 50 m

with a monocrystalline silicon balance-spring power reserve up to 72 hours

elegantly set with eleven VS 1

the Aircraft Owners and Pilots Association (AOPA) announced the design as its official timepiece

Portugieser Perpetual Calendar Collection_Longines Ultra‑chron while adding modern featuresThis special edition of the Portugieser Perpetual Calendar captivates with a nautical design in dark blue and gold. Overview Reference: IW503312 Dial Color: Blue Case: 18 ct Armor Gold Strap: Blue alligator leather strap by Santoni View all compatible straps Diameter: 44. 2 mm Movement: Automatic, self winding, IWC manufactured movement Features Small hacking seconds Pellaton automatic winding Sapphire glass, arched edge, antireflective coating on