The IWC Big Pilot's Watch Perpetual Calendar (reference IW503605) is a remarkable timepiece that combines the iconic design of the Big Pilot's series with the intricate mechanics of a perpetual calendar. Housed in a 46.2 mm stainless steel case, this watch features a striking blue dial complemented by rhodium-plated hands. The perpetual calendar complication displays the date, day, month, year, and moon phase, all adjusted automatically for leap years. Powered by the IWC-manufactured Calibre 52615 automatic movement, it boasts an impressive 168-hour (7-day) power reserve, thanks to the efficient Pellaton winding system. The movement is visible through a sapphire crystal case back. Paired with a blue calfskin strap, this timepiece offers both functionality and elegance. With a water resistance of 6 bar, it is suitable for everyday wear.
Key Specifications
- BRAND: Replica IWC
- Category : Big Pilot Perpetual Calendar
- Movement: Automatic
- Case Material: Steel
- Case Diameter: 46.2 mm
- Dial Colour: Blue
- Condition: Excellent
- Resistance: 60 meters

Gerald Brown –
very good items and fast shipping
James Mozgawa –
nice watch, Quick shipment, good deal
Posey –
FANTASTIC watch!!! Thanks a lot
CPT Lamar Sales –
nice watch. clasp is not like other bulova watches i have...a bit harder to open
Jesper Lindkvist –
This is a beautiful piece of jewelry and I absolutely love it. I get soooo many compliments on it.
matt mcmullen –
It's a nice clean look, I like a little more mechanics to my watch. It's a great buy for the price.
Daniel Gill –
I purchased, good quality for the price, don't expect a 'heavy' watch, it's light, but note the right hand dial is really large, I returned, it stood out - literally -- if you're ok with that, then you should be ok with the watch