Patek Philippe Calatrava 18K Rose Gold Ref. 2525R

$20,300.00 USD

Manufacturer: Patek Philippe
Model: Vintage Calatrava
Reference Number: 2525R
Movement: Manual winding
Condition: Very good - wear is consistent with age and use
Gender: Men’s/Unisex
Time Period: 1954
Retail / Compare-At Price: n/a collector’s item
Our Best Price: $20,300 

Movement: -
Caliber: 12-400
Jewels: 18

Case Material: 18K rose gold
Case Diameter: 36 mm
Thickness: 9 mm
Waterproof: 80 ft./25 m.
Water Resistance: 2.5 ATM
Material Bezel: Fixed stepped rounded 18K rose gold
Glass: Domed acrylic crystal
Dial: Silver matte
Dial Numerals: 18K yellow gold applied tlance hour indices and beady minutes divisions around the outer rim 

Bracelet color: Blue
Bracelet Material: Leather
Clasp: Tang
Clasp material: 18K rose gold

Hours, minutes, subsidiary small seconds subsidiary dial at 6 o’clock, 48-hour power reserve

18K rose gold solid three-body case, fluted lugs, solid screw-down case back, and fixed stepped rounded bezel are polished
18K rose gold applied dauphine-shaped hands, stick small seconds hand
Subsidiary constant seconds "crosshair" dial at 6 o'clock
18K rose gold knurled push/pull crown
18K yellow gold fluted lugs
18K rose gold solid screw-down case back (Patek Philippe first attempt at a waterproof case)
The mechanical manual winding Patek Philippe caliber 12-400 movement is rhodium-plated, with fausses côtes embellishment, and is stamped with the Geneva Quality Hallmark. It is constructed with 18 jewels, a shock absorber mechanism, and a straight-line lever escapement. It includes a Gyromax monometallic balance that is adjusted to heat, cold, isochronism and to five positions. There is a self-compensating blued steel Bréguet balance spring, a five bridge construction and a swan neck micrometer regulator.
Patek Philippe original strap and pin buckle 
Incomplete (no box, extract from the Patek Philippe Archives dated 1954)