5270R, Perpetual Calendar Chronograph, Pink Gold Ingenieur SL This is the second Type

This is the second Type 1D ever made

irregularly-textured anthracite tritium dial and pencil hands

2915 Speedmaster

and elevated pulsations scale

5270R, Perpetual Calendar Chronograph, Pink Gold Ingenieur SL This is the second TypeA ref. 5270 1R 001, the only 5270 reference made with a matching bracelet. Debuting in 2018, this pink gold 5270R revived bracelets within the Perpetual Calendar Chronograph, with a black dial for the occasion. The 5270 was Patek Philippe's first entirely in house designed, manufactured, and finished Perpetual Calendar Chronograph. Since Patek Philippe invented the Perpetual Calendar Chronograph in 1941, just 5 references have followed. The 5270