Identification
- Brand
- Audemars Piguet
- Model
- Extra Flat
- Reference
- BA.4273.002
- Year of production
- 1999
- Gender
- Men
- SKU
- AD10008








Margin scheme under Section 25a UStG · Insured shipping included
Audemars Piguet Extra Flat Yellow Gold BA.4273.002 - 1999
Cologne Watch Düsseldorf
Schadowstraße 11
40212 Düsseldorf
Germany
Cologne Watch Köln
Benesisstraße 24-32
50672 Köln
Germany
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Description
The Audemars Piguet Extra-Flat, reference BA.4273.002, from 1999 is an impressive testament to the historic core expertise of the Le Brassus manufacture: creating extremely slim, elegant dress watches in the spirit of absolute haute horlogerie. Crafted from precious 18-karat Yellow Gold, this reference embodies a timeless aesthetic that combines traditional craftsmanship with classic restraint. Powered by an ultra-thin in-house manual-winding movement, this watch is designed for discerning connoisseurs who appreciate discreet luxury and outstanding micromechanical precision.
Slim 18-karat Yellow Gold case: The fine, round case measures a classic ~31–33 mm in diameter, with a remarkably slim height of just a few millimeters. The polished Yellow Gold surface gives the watch a warm, shimmering glow.
Purist dial with finely detailed minute track: The dial (often in an elegant champagne or off-white shade) impresses with its extreme reduction to the essentials. Slim applied baton hour markers or fine Roman numerals, along with elegant 18-karat Yellow Gold hands, underscore its harmonious symmetry.
Ultra-miniaturized manual-winding caliber (AP Caliber 2080): Inside, a masterfully finished, ultra-thin in-house manual-winding movement beats. The movement features fine Geneva stripes, beveled bridges, and excellent timekeeping accuracy—a testament to Audemars Piguet's decades of pioneering work in the field of slim mechanical movements.
Scratch-resistant Sapphire Crystal: A flat, highly transparent Sapphire Crystal protects the dial flawlessly from external impacts and ensures crystal-clear visibility.
Finely designed case back: The closed 18-karat Yellow Gold case back is precisely screwed or pressed into place and bears the manufacture's engraved reference and serial numbers.
Classic splash resistance: In keeping with the elegant character of an ultra-thin dress watch, the case is protected against everyday elements such as moisture and dust.
Genuine leather strap with original Yellow Gold pin buckle: The reference is worn on a supple, hand-stitched alligator or calfskin strap, secured by an original 18-karat Yellow Gold pin buckle with a discreet AP signature.
Exquisite turn-of-the-millennium collector's piece (1999): Reference BA.4273.002 combines the elegance of classic Swiss watchmaking tradition with Audemars Piguet's unmistakable quality standards—an ideal addition to any distinguished collection of classic dress watches.

Specifications
What you will receive
Before delivery, our watchmakers check every watch for authenticity, function and condition.
Included: Certificate of Authenticity 1 Year Warranty.
12-month Cologne Watch warranty on movement and functionality – in addition to your statutory rights regarding defects.
Shipping is fully insured, with tracking and personal handover.
For online purchases, you can return the watch within the statutory withdrawal period.
On request, we hand over the watch in person at Cologne Watch Düsseldorf.
Locations
This watch is available at Cologne Watch Düsseldorf – feel free to visit us in person.
Before purchase
Alternatively, you can view and purchase your desired watch directly at our store in Cologne or Düsseldorf.
Yes, we guarantee the authenticity of every watch 100%. Each watch is thoroughly inspected by our experts for authenticity and functionality before sale. You will, of course, receive a proper dealer invoice with complete documentation.
All watches are technically inspected and professionally refurbished where necessary. Please refer to the condition description in the product details for the exact cosmetic and technical condition.
Whether the original box and papers are included is stated in the product details for each watch. Regardless, you will of course always receive a proper dealer invoice with complete documentation for your watch.
Every watch comes with a 12-month warranty covering the movement. In addition, you are of course fully entitled to your statutory warranty rights.
We accept the following payment methods:
Yes, we accept luxury watches from renowned brands as trade-ins. Contact us with details about your watch (brand, model, condition, accessories), and we will make you a fair offer that can be credited against the purchase price.
Yes, every watch is shipped fully insured via UPS Express or FedEx. We assume full responsibility until the watch has arrived safely with you.
Within Germany, 1–3 working days (free shipping). Within the EU, 2–4 working days. Internationally, 2–5 working days. Shipping costs for the EU and international destinations are calculated at checkout.
Yes, we ship worldwide via FedEx. Please note that import duties may apply, the amount of which is beyond our control.
Yes, visit us in Cologne (Benesisstr. 24–32, 50672 Cologne) or Düsseldorf (Schadowstrasse 11, 40212 Düsseldorf).
Yes, the 14-day right of withdrawal applies to online purchases. You may return the watch within 14 days without giving a reason. Please contact us in advance so that we can arrange insured return shipping for you. You can find all the details in our information on the right of withdrawal.
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