Introduced in 1986, the Patek Philippe Calatrava reference 3923 was produced until 1999 in yellow or pink gold. It features a classic 32mm two-piece snap-back case crafted by Ateliers Réunis, paired with elegant dials made by Stern Créations in Geneva. The dials are typically adorned with applied gold bullet hour markers and gold dauphine hands, while the outer minute track are pearl-engraved. The Patek Philippe signature is painted in black, maintaining a clean and refined aesthetic. Timeless in its Calatrava form, this reference is powered by the manual-winding caliber 215 S, featurin🔜g the robust and precise Gyromax balance.