Abraham-Louis Perrelet, (9 January 1729 – 1826), born in Neuchâtel in Switzerland, was a Swiss horologist. He was the founder of the PERRELET watchmaking firm and the inventor of the self-winding mechanism. Since more than 250 years the name of Perrelet is a synonyme of highest quality and great style. The offered Rectangle Royale is very rare and beautiful lucky find. Watches of this series today can't be found anymore in such flawless condition like this one. Every LImited Edition is interesting investment, this one - especially! 1777 Rectangle Royale - Double Rotor N° 900 Automatic modified ETA 2836 caliber Power reserve 40hours CASE 316L stainless steel, polished Fixed bezel. Size: 34mm (excl. crown)/37mm incl. x 45mm (lug to lug) DIAL Snow-silver guilloche with luminescent hands Minute markers around the inner ring Scratch-resistant, anti-reflective sapphire crystal Date at 04:30 o'clock CROWN: Push/Pull with Perrelet logo STRAP: Brand-new black leather with croco embossing Length: 21cm Width: 20mm CLASP: Stainless steel tang with Perrelet logo WEIGHT: 64grams Water resistant: 50meters/5ATM/165feet General overhaul done just now. Excellent condition, like NEW. My personal warranty 1 year, approved by Catawiki. Insured, registered shipping worldwide