- Movement
- Self-winding
- Size
- 42.2 mm
Overview
An alarm and a second time zone, in a water-resistant case
The Patek Philippe Alarm Travel Time, reference 5520RG-001, in rose gold with four white gold pusher tubes and a sunburst grey dial, on a chestnut calfskin strap; self-winding calibre AL 30-660 S C FUS with 24-hour alarm; 42.2 mm, 11.6 mm high. Patek Philippe no longer lists the reference in its current collection.
The reference 5520RG-001 is the two-tone execution of Patek Philippe's Alarm Travel Time, reference 5520: a rose gold case with four pusher tubes in white gold, 42.2 mm across and 11.6 mm high, around a sunburst grey dial. Patek Philippe pairs two things in it: its Travel Time system, with a second time zone and the date indexed to local time, and a 24-hour alarm that strikes a hammer on a classic gong — the only chiming watch, the brand says, that the brand makes in a water-resistant case.
The self-winding calibre AL 30-660 S C FUS shows local time by a sword-style hand in charcoal grey white gold filled with luminescent coating and home time by a skeletonised hand of the same form, with day/night indications for each in apertures and the date coupled to local time by hand; sweep seconds run from the centre. The alarm time is shown digitally in 15-minute increments in an applied charcoal grey white gold frame with a rose-gilt outline, with its on/off and day/night states in apertures and the alarm and Travel Time functions marked on the pushers; four patents were granted for the alarm, Patek Philippe says. The movement winds through a 21K gold central rotor and measures 31 mm across and 6.6 mm high, with 574 parts and 52 jewels; it runs at 28,800 semi-oscillations an hour on a Gyromax® balance with a Spiromax® balance spring, for a power reserve of 42 to 52 hours, and carries the Patek Philippe Seal.
For collectors
Patek Philippe's own distinction is that this is its only chiming watch in a water-resistant case — the alarm strikes a hammer on a gong inside a case rated to 30 m — and its 'two-tone' is a matter of the pusher tubes: the case is rose gold and the four tubes white gold, with the alarm frame on the dial outlined in rose-gilt.
Key details
Design and engineering
- Two-tone caseRose gold, 42.2 mm across and 11.6 mm high, with four pusher tubes in white gold; interchangeable solid and sapphire crystal case backs, water-resistant to 30 m — which Patek Philippe says makes it its only chiming watch with a water-resistant case.
- 24-hour alarmA hammer strikes a classic gong; the alarm time is shown digitally in 15-minute increments in an applied charcoal grey white gold frame with a rose-gilt outline, with on/off and day/night indications in apertures. Patek Philippe counts four patents granted for the alarm.
- Travel TimeTwo time zones: local time by a sword-style hand filled with luminescent coating, home time by a skeletonised sword-style hand, each with its own day/night aperture; the date is coupled to local time and shown by hand. The alarm and Travel Time functions are marked on the pushers.
- DialSunburst grey with applied numerals in charcoal grey white gold with luminescent coating, and charcoal grey white gold sword-style hands.
- Strap and buckleChestnut calfskin with a vintage finish and cream stitching, closed by a rose gold clevis prong buckle.
Calibre AL 30-660 S C FUS
- Self-winding, 21K gold central rotor
- 24-hour alarm with chime on a classic gong; alarm time, on/off and day/night indications in apertures
- Two time zones, local and home, with day/night indication for each in apertures; date coupled with local time by hand; sweep seconds
- 31 mm across, 6.6 mm high; 574 parts, 52 jewels
- 28,800 semi-oscillations per hour (4 Hz), Gyromax® balance, Spiromax® balance spring
- Power reserve 42 to 52 hours
- Patek Philippe Seal
The reference
Technical specifications
| Reference | 5520RG-001 |
|---|---|
| Collection | Grand Complications |
| Calibre | Caliber AL 30-660 S C FUS |
| Movement | Self-winding |
| Functions | 24-hour alarm with chime on a classic gong, Alarm time displayed in an aperture, Alarm on/off indication in an aperture, Alarm day/night indication in an apertures, Two time zones: local and home time indication, Day/night indication for local and home time in apertures, Date coupled with local time by hand, Sweep seconds |
| Case dimensions | 42.2 mm |
| Case thickness | 11.6 mm |
| Case material | Rose gold and white gold |
| Case back | Sapphire crystal case back |
| Water resistance | 30 m |
| Dial | Sunburst gray, charcoal gray white gold applied numerals with luminescent coating |
| Strap | Calfskin, chestnut with vintage finish |
| Clasp | Rose gold clevis prong buckle |
| Jewels | 52 |
| Power reserve | min. 42 hours – max. 52 hours |
| Frequency | 28,800 semi-oscillations/hour (4 Hz) |
| Status | Discontinued — no longer in the current collection |
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