Lot Essay
Introduced at Basel World in 2011, reference 5270 is the most recent addition to the legendary Patek Philippe perpetual calendar chronograph family starting with the reference 1518 from 1941.
With a thinner case and a 1 mm. increase in diameter over its predecessor (ref. 5970) the 5270 wears quite differently from previous Patek Philippe perpetual calendar chronographs. Another contributing factor to this is the new in-house caliber, featuring a day/night indicator as well as slightly lower registers, giving the dial a unique appearance.
With a thinner case and a 1 mm. increase in diameter over its predecessor (ref. 5970) the 5270 wears quite differently from previous Patek Philippe perpetual calendar chronographs. Another contributing factor to this is the new in-house caliber, featuring a day/night indicator as well as slightly lower registers, giving the dial a unique appearance.