Calatrava Pilot Travel Time Alarm 5520 Rose Gold / Grey

In Context

At 42.2 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 11.6 mm thick it is about average for a modern wristwatch. The case back is open, so the movement is visible without taking the watch apart, and the sapphire crystal will resist everything short of deliberate abuse. Rated to 30 m, it is protected against rain and splashes and nothing beyond that.

The movement winds itself from the motion of your wrist. 42 hours of reserve carries it overnight, but not through a weekend in a drawer. At 28,800 vph the seconds hand advances 8 times a second.

5520RG-001 stands on its own in this catalogue — no other reference here shares its base number. It pairs a grey sunburst dial with a white gold, rose gold case.

Self-winding mechanical movement. Caliber AL 30-660 S C FUS. Alarm time displayed in an aperture. Alarm on/off indication in an aperture. 24-hour alarm. Alarm on/off and day/night indication. Two time zones: local and home time indication. Day/night indication for local and home time. Local date. Sweep seconds hand. Diameter: 31 mm. Height: 6.6 mm. Parts: 574. Jewels: 52. Power reserve: min. 42 hours – max 52 hours. Central rotor in 21K gold, unidirectional winding. Balance: Gyromax®. Semi-oscillation/hour: 28 800 (4 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal.