Patek Philippe Calatrava "Riccio" 18K Yellow Gold Ref. 1491J

DETAILS
Manufacturer: Patek Philippe
Model: Calatrava
Reference Number: 1491J
Movement: Manual winding 
Condition: Very good 
Gender: Men’s/Unisex
Time Period: 1951
Retail / Compare-At Price: n/a collector’s item
Our Best Price: $14,700 

CALIBER
Movement: 763550
Caliber: 12''120
Jewels: 18

CASE
Case Material: 18K yellow gold
Case Diameter: 34 mm
Thickness: 8 mm
Waterproof: -
Water Resistance: -
Material Bezel: Fixed 18K yellow gold
Glass: Acrylic 
Dial: Silver
Dial Numerals: 18K yellow gold applied faceted baton (lapped) hour indices, outer perlé minute track around the outer rim

BRACELET / STRAP
Bracelet color: Blue
Bracelet Material: Leather
Clasp: Tang
Clasp material: Generic gold plated (an original 18K yellow gold straight ardillon buckle can be purchased separately)

FUNCTIONS
Hours, minutes, subsidiary seconds dial at 6 o'clock

OTHERS
Round-shaped case, brushed and polished
18K yellow gold applied dauphine-shaped hour/minute hands and leaf-shaped small second hand
Solid 18K yellow gold snap-on case back
18K yellow gold fancy scroll lugs
This Caliber 12''120 is a mechanical movement that is rhodium-plated, with fausses côtes decoration, a straight-line lever escapement, a cut bimetallic compensation balance, a blued steel Breguet balance spring, and swan-neck micrometer regulator. It is adjusted to heat, cold, isochronism and five positions.
This model with scrolled lugs had a bold design that sets it apart from more traditional wristwatches of the era.
This reference 1491 is nicknamed by collectors "Riccio" meaning lock as the scroll lugs are similar to a curly lock of hair, but is also nicknamed "Fernandel" by French collectors as the famous comedian was known to proudly wear this reference.
Incomplete (no box, extract from the Patek Philippe archives)