Sahara Desert: Covering almost one-third of the continent, the Sahara is the largest desert in the world at approximately 3,500,000 sq. miles (9,065,000 sq. km) in total size. Topography includes areas of rock-strew plains, rolling sand dunes and numerous sand seas.overing almost one-third of the continent, the Sahara is the largest desert in the world at approximately 3,500,000 sq. miles (9,065,000 sq. km) in total size.
You are way off mark. I collect watches (including Rolex). I am what you call a Horologist. Anyone who tells you that you can identify a Rolex by how the second hand moves knows nothing about Rolex. You can get watches for $10 with nice smooth moving second hands. 1. Some 70's era real Rolex do use batteries. If the watch says Oysterquartz on the front then it is a battery powered watch. 2. You can only get the battery at a specialty watch shop. The battery type was common in the 70's but not today. 3. If the watch is 40 years old, then the battery has leaked inside by now.
Depending on the time exposed to light correlates to how long the luminescence lasts. A watch exposed in the sunlight all day, will glow all night. Although SuperLuminova is used in Rolex dials and hands, the effectiveness of SuperLuminova depends on the thickness of its applied layer on the dial or hands. The smaller DateJust dials and hands will not glow as brightly as the new Explorer II dials that have fat hands and larger hour dots.