The Tudor Black Bay 58 has become one of the most talked-about watches in recent years. For many lovers of mechanical wristwatches, it represents a perfect entry into the world of classic divers: compact, technically solid, and value for money that's hard to beat. Before you take a closer look at this model or buy it, there are a few important things to note. In this article, I'll share five things you need to know about the Tudor Black Bay 58 – from its history, design, and technology, to prices and trends.