SPECIFICATIONS

Brand: Patek Philippe
Model: Calatrava Officer's 150th Anniversary
Reference Number: 3960J-001
Movement: Manual winding
Condition: Very good
Gender: Men’s
Time Period: 1989
Box: No
Papers: Extract from the Patek Philippe Archives

THE CALIBER

Caliber: 215 PS
Jewels: 18 

THE CASE

Case Material: 18K yellow gold
Case Diameter: 33 mm
Thickness: 8 mm
Waterproof: 80 ft./ 25 m./ 2.5 ATM
Bezel Material: Fixed 18K yellow gold
Glass: Sapphire Crystal
Caseback:  Solid
Dial: White enamel  
Dial Numerals:  Painted black Bréguet numeral hour indices, painted black minute railway-track indicator around the outer rim.

THE BRACELET / STRAP

Bracelet Material: Black Leather
Buckle: Ardillon
Buckle Material: 18K yellow gold

THE FUNCTIONS

Hours, minutes, subsidiary small seconds dial at 6 o’clock, 44-hour power reserve.

FURTHER READING

Blackened Breguet shaped hour/minute hands
18K yellow gold push/pull turban-style crown
This timepiece is stamped with the quality mark of the Seal of Geneva, includes a straight-line lever escapement, and the patented Patek Gyromax balance adjusted to cold, heat, isochronism, and 5 positions. In addition, it has a shock absorber and a self-compensating free-sprung flat balance spring. 
18K yellow gold officers buckle, the case, dial, and movement are all signed.
18K yellow solid, polished hunter-style hinged case back, which opens to reveal an engraved cuvette with the inscription Patek Philippe 150th Anniversary commemoration.
Straight lugs, gold screwed bars.
Patek Philippe GENEVE signature at 12 o’clock
The ref. 3960J was produced in a limited edition of 2,200 watches 2000 examples were made in yellow gold, 150 in white gold, and 50 in platinum. To commemorate the 150th anniversary of Patek Philippe in 1989.
Incomplete (no box, with extract for the Patek Philippe Archives).