More Information About the

Basic Info
Brand	Patek Philippe
Model	Perpetual Calendar Chronograph
Reference number	3970E
Movement	Manual winding
Case material	Platinum, Rose gold, Yellow gold
Bracelet material	Crocodile skin, Leather, Satin
Year of production	1990, 1992, 1993, 1998, 2002
Gender	Men's watch/Unisex
Location	Germany; Italy; Spain; United Kingdom; United States of America

Caliber
Movement	Manual winding
Caliber/movement	CH 27-70 Q

Case
Case material	Platinum, Rose gold, Yellow gold
Case diameter	36.0 mm
Water resistance	2.5 ATM
Crystal	Sapphire crystal
Dial	Silver, White

Bracelet/strap
Bracelet material	Crocodile skin, Leather, Satin
Bracelet color	Blue, Brown
Clasp material	Yellow gold

Functions
Functions	Chronograph, Date, Month, Moon phase, Perpetual calendar