IWC Big Pilot Perpetual Calendar 46.2mm IW502609 Rose Gold Black Dial 1 of 25

Brand: IWC 

Model: Big Pilot Perpetual Calendar

Reference Number: IW502609 

Materials: Rose Gold 

Case diameter: 46.2mm 

Movement: Automatic

Condition: Very Good

Year of Production: Unknown

Box: Yes

Papers/Warranty Card: Yes

Booklets: Yes

ID : 72588

The IWC Big Pilot’s Watch Perpetual Calendar (ref. IW502609) is a rare and highly exclusive timepiece, limited to just 25 pieces worldwide. Crafted in luxurious rose gold, its commanding 46 mm case houses a striking black dial with a perpetual calendar complication that automatically accounts for the differing lengths of months and leap years. The dial layout features subdials for date, day, month, and a four-digit year display, all arranged with the exceptional legibility that defines IWC’s Big Pilot line. The moonphase complication is rendered with precision, underscoring the watch’s blend of technical mastery and artistry.

Powering the watch is the IWC-manufactured 52610 caliber, a robust movement with a seven-day power reserve thanks to its twin-barrel system. The Pellaton winding system with ceramic components ensures efficiency and durability, while the see-through sapphire caseback allows a view of the finely decorated mechanism. Paired with a fabric strap that enhances its aviation-inspired heritage, this timepiece offers a remarkable balance of utility, sophistication, and rarity—making it a centerpiece for serious collectors.