For Auction: Constantin Weisz Tourbillon – Big Date – Limited Edition 490/999 – Sapphire Crystal – Near Mint Up for auction is an exceptional Constantin Weisz Tourbillon watch, reference T20CW, featuring a large double-window date complication at 12 o’clock and a visible rotating tourbillon at 6 – a masterful combination of mechanical complexity and visual elegance. This is a limited edition timepiece, number 490 out of only 999 ever made, making it a rare and collectible example of modern horology. The watch has been professionally serviced, is in outstanding condition, and is fully operational – ready to wear and enjoy. It is important to note that this watch is extremely difficult to photograph accurately. The dial features a square pattern texture that reflects light in a way that often confuses the camera and creates optical illusions. Because of this, the watch looks far more beautiful and refined in person than in photos. The big date function is another rare feature not often seen on tourbillon watches, further increasing the desirability and uniqueness of this model. Powered by a mechanical automatic movement, the tourbillon rotates continuously, enhancing both accuracy and aesthetic charm. The transparent case back allows a clear view of the beautifully finished movement. With sapphire crystal on the front, you get excellent scratch resistance and clarity. Water-resistant to 3 ATM, it’s suitable for daily wear (excluding water exposure). It comes on a high-quality, massive mesh stainless steel bracelet for a bold, elegant presence on the wrist. ⸻ Specifications: • Brand: Constantin Weisz • Model: Tourbillon Big Date – Ref. T20CW • Edition: Limited – No. 490/999 • Movement: Automatic mechanical with visible rotating tourbillon • Functions: Hours, minutes, big date, tourbillon • Crystal: Sapphire (front) • Case Back: Transparent exhibition • Water Resistance: 3 ATM • Bracelet: Massive stainless steel mesh bracelet • Condition: Excellent – like new, recently serviced • Special Notes: Difficult to photograph due to reflective dial texture – much more beautiful in person Shipping is handled via Lux Post in cooperation with DHL, insured and trackable. This is a rare opportunity to own a limited edition tourbillon with a large date display – a true standout piece in any collection. Don’t miss it. See my other listings for more rare timepieces.