Calatrava

SPECIFICATIONS 

Brand: Patek Philippe
Model: Calatrava
Reference Number: 3445J
Movement: Automatic
Gender: Men's 
Condition: Good (worn with little signs of wear)
Time Period: 1963
Box: No
Papers: Extract from Patek Philippe Archives

THE CALIBER
Caliber: 27-460M
Jewels: 37

THE CASE
Case Material: 18K yellow gold
Case Diameter: 35 mm
Thickness: 10 mm
Waterproof: 
Bezel Material: Fixed 18K yellow gold
Glass: Acrylic (apparent scratches on the glass - can be refurbished upon request)
Caseback: Solid
Dial: Champagne with radial brushing 
Dial Numerals: Yellow gold applied baton hour indices, outer perlé minute track around the outer rim

THE BRACELET/STRAP
Bracelet Material: Blue Leather
Buckle: Tang
Buckle Material: Gold plated

THE FUNCTIONS
Hours, minutes, guichet date at three o’clock, subsidiary seconds dial at 6 o'clock

FURTHER READING

Yellow gold applied stick-shaped hour/minute hands small second hand
Solid two-body round case and bezel are polished/brushed, excellent condition
Solid 18K yellow gold screw-down case back
Sharp straight 18K yellow gold angled lugs with a crisp and visible hallmark in the back
18k yellow gold pull/push recessed knurled crown with Calatrava cross engraved
The caliber 27-460 is stamped with the Geneva Quality hallmark, and it has the Patek Philippe seal. It's rhodium-plated, with fausses cotes embellishment, a shock absorber device, and a straight-line lever escapement. It includes a self-adjustable balance spring stud carrier, an adjustable-mass balance with a Breguet overcoil spring, and a Gyromax balance that's adjusted for heat, cold, isochronism, and 5 positions, and a centrally mounted solid 18K yellow gold rotor, consummately decorated with the engine turning.
This mechanism oscillates at the frequency of 19,800 vph (3 Hz). 
The caliber 27-460 M, the successor of the caliber 12-600 AT, was the first automatic watch movement with a date produced by Patek Philippe in a series in production for 25 years, from 1960 to 1985.
This caliber 27-460M offers the same exquisite finishing as the 12-600 AT movement in the ref. 2526.
Walt Odets called Cal. 27-460 "the reigning queen of that half-century" and "the most elaborate and costly simple automatic watch movement ever produced."
Caliber 27-460 M was also called "La Grande Dame des automatiques Suisse"
Incomplete (no box, with an extract from the Patek Philippe Archives, dated 1963)

Warranty & authenticity

We stand behind the authenticity and quality of our merchandise, nothing is more important to us that a transparent transaction that makes our clients well-pleased.
Twain Time has more than 30 years of experience in buying and selling previously owned luxury goods, and quality-control is extremely important to us. Our trusted experts take the worry out of buying so that you can focus on finding your most desirable watch or jewelry.
Every item has undergone a thorough inspection by our knowledgeable technicians, ensuring full originality (unless stated otherwise) and perfect working condition to assure you get everything as expected. We know the value of security.
To provide further peace of mind, we offer a 12-month limited warranty alongside any remaining manufacturer’s warranty on all our luxury timepieces and fine jewelry from the date of purchase.
Please see our Terms & Conditions for further information.

Shipping & Returns

We offer a fully insured domestic & worldwide, express & priority delivery service. If ordering from the US, your order will be sent immediately after the reception of the funds.
The courier will depend on the value of the purchase, with all orders delivered the next business day. If ordering from outside the US, your order will be sent immediately after reception and clearance of the funds. International deliveries will depend on the choice of the courier and the destination. Our commitment does not end at delivery.
We offer a 7-day store credit/exchange to make your experience as pleasant and comfortable as possible.
Please see our Terms & Conditions for further information. We make continuous efforts to provide outstanding service. We value our clients' relationships and strive to offer the highest quality of customer service at every opportunity.