Patek Philippe
8-day Power Reserve, Instantaneous Day and Date
5328G-001 Complications
Description
Patek Philippe launches a new Calatrava with instantaneous day-date displays and an eight-day power reserve.
The new manually wound 31-505 8J PS IRM CI J caliber combines a classic construction with several technical innovations, including a Pulsomax® escapement in Silinvar®. The two series-coupled barrels guarantee perfectly accurate operation for a full eight days, with a ninth “reserve” day displayed in red on the indicator. The day-date displays jump instantaneously at midnight.
The entire circumference of the white gold caseband is adorned with Patek Philippe's emblematic hobnail pattern.
Specifications
Case
Shape
Round
Case Back
Sapphire crystal case back
Case Material
White gold
Diameter
41 mm
Water Resistance
30 m
Thickness
10.52 mm
Dial
Colour
Textured blue with black-gradient rim
Hour Markers
White gold applied numerals with white luminescent coating
Power Reserve
Min. 192 hours (8 days)
Movement and Functions
Movement
Manually wound mechanical movement
Caliber
Caliber 31‑505 8J PS IRM CI J
Functions
Instantaneous date by hand. Instantaneous day in an aperture. Power reserve indication. Small seconds.
Strap
Material
Calfskin, fabric pattern
Colour
Navy blue
Buckle
White gold patented triple-blade fold-over clasp
Extra Strap
Calfskin, grained, taupe