The Audemars Piguet Royal Oak Dual Time (Reference 26120ST.OO.1220ST.01) is a highly collectible, discontinued luxury timepiece that pairs the iconic 39mm Gérald Genta octagonal design with practical travel complications. This specific model variant features a signature silver "Grande Tapisserie" waffle dial housing an asymmetric layout that balances multiple calendar, tracking, and power tracking functions.

The silver dial utilizes a traditional pantograph-engraved hobnail pattern. The layout hosts white gold applied hands and baton index markers filled with luminescent coating to track the primary timezone. It packs four additional features: 

• Power Reserve Indicator: Located on the upper-left quadrant (between 9 and 11 o'clock) tracking remaining autonomy.

• Radial Date Sub-dial: Positioned on the upper-right quadrant (between 1 and 3 o'clock).

• Dual-Time Sub-dial: Located at the 6 o'clock position to display a second time zone effortlessly.

• AM/PM Day/Night Indicator: Located at 7 o'clock, interconnected with the second time zone sub-dial to easily prevent calling home at the wrong hour.

• The technical architecture of the 26120ST variant with a silver dial involves the following specifications:

  • Case Size: 39mm diameter, 10.5mm thickness, 50mm lug-to-lug. (Note: Due to the integrated bracelet geometry, it visually wears larger—closer to a 41mm round watch).

  • Case & Bracelet Material: High-grade brushed and polished stainless steel with an integrated bracelet and AP folding deployment clasp.

  • Movement: Audemars Piguet Caliber 2329/2846 automatic self-winding movement.

  • Power Reserve: Approximately 38 to 40 hours.

  • Water Resistance: 50 meters (5 ATM) with a screw-down crown.

  • Crystal: Scratch-resistant, glare-proof sapphire crystal.