The Stealth (101.025) has a platinum case and rhodium dial. My watch (110.030) has a white gold case and mother-of-pearl dial. The Stealth was in production for a longer period of time. More Stealths exist, and the Stealth is generally a more popular and well-liked model. The 110.030 has more of a niche market due to the mother-of-pearl dial. Discussions focused on prices aren't allowed here, but you can look at sites like Chrono24 to see what a slightly-to-very overpriced example would cost. If you see a watch listed there for more than a week, then it's probably priced too high.