What are the popular models inside the Audemars Piguet Royal Oak Offshore series? The particular Royal Oak Offshore (also known as the " Big Offshore" ) is seen as an its larger and fuller size, vibrant colors, and also robust materials. The most popular types fall into four categories: plunging steel, ceramic chronographs, treasured metal/limited editions, and 37mm women's models. I. Basic Diving Models (42mm, steel is the most popular) 15720ST (Avocado/Green Dial, 2021) Stainless steel scenario, green Méga Tapisserie face, rubber strap, Cal. 3120, 300m water resistance; a popular model with a high premium. 15720ST (Blue/Black Dial) Same movement and sizing; blue dial is elegant, black dial is typical; highly sought-after on the extra market. 15710ST (Older model with see-through case back) 42mm steel case, various dial colors, Cal. 3120; a high choice for beginners. II. Ceramic/Metal Chronographs (42-43mm, Sporty Luxury) 26420CE (Black/Green Ceramic...