Golden Ellipse

SPECIFICATIONS

Manufacturer: Patek Philippe
Model: Golden Ellipse
Reference Number: 3634J
Movement: Automatic
Condition: Very good (worn with little signs of wear)
Gender: Men’s
Time Period: 1977 
Box: Yes
Papers: Extract from the Patek Philippe Archives

THE CALIBER
Caliber: 28 - 255
Jewels: 36

THE CASE
Case Material: 18K yellow gold
Case Diameter: 38 x 33.5 mm
Thickness: 6 mm
Waterproof: -
Water Resistance: -
Material Bezel: Fixed stepped 18K yellow gold 
Glass: Mineral 
Dial: Black plain onyx 
Dial Numerals: No numerals 

THE BRACELET / STRAP
Bracelet color: Black
Bracelet Material: Leather
Clasp: Ardillon Patek Philippe Ellipse
Clasp material: 18K yellow gold 

THE FUNCTIONS
Hours, minutes, 38-hour power reserve

FURTHER READING

Two-piece oval-shaped brushed and polished case
18K yellow gold applied dauphine-shaped hour/minute hands 
Cabochon onyx set crown
18K yellow gold solid case back, snap-on back
Concealed T-bar style lugs
The caliber 28-255 is an automatic movement, rhodium-plated, with fausses côtes decoration, a straight-line lever escapement, a free-sprung gyromax balance, a solid gold rotor on a beryllium carousel supported at four jeweled rollers, a ball bearing intermediate wheel in the auto winding system and a jeweled ratchet under its own bridge, a self-compensating balance-spring shock absorber and adjusted to heat, cold, isochronism and five positions. Stamped with the Seal of Geneva.
This mechanism oscillates at the frequency of 19,800 vph (2.75 Hz).
This caliber was also used on the Patek Philippe Nautilus ref. 3700.
This caliber was based on the JLC 920 Ebauche and was one of the best engineered slim-line automatic movement on the market.
Original Patek Philippe leather strap.
Visible sharp hallmarks on the side of the case. 
Complete (with Patek Philippe fitted box and extract from the Patek Philippe archives dated 1977).

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.