Open-Heart Dial: Authentic Patek Philippe watches generally do not display the balance wheel on the main dial, except for select highly complex or skeletonized references.
Two-Tone Bracelet: While Patek Philippe uses stainless steel, gold, and platinum, most authentic models come in a single precious metal or steel, rather than a common two-tone (gold and steel) combination like the one pictured.
Movement: Search results for this style of watch indicate it often uses a quartz movement, whereas Patek Philippe is renowned for its high-quality mechanical movements.