We don’t know how an ancient Ninja know the accurate time to assassinate a general. But if you are modern ninja, the following Nero Ninja analog watch should be a nice solution.
This is a well-designed, stylish analog wrist watch by Tokyo Bay that measures 1-3/4 inches in diameter by 1/4 inch thick. As we can see from the images, the analog watch features all stainless steel case with black IP plating and black textured rubber band, while the back-on-black watch face maintains your stealth during your missions, but still easy to read the time with its glowing hands in the dark. Of course, if you feel very much not suited, there are blood-red and nuclear-green options available for those who need higher visibility.
Nero Ninja analog watch is available in three types, each one is priced at $119.99 USD. If you’re interested, jump to ThinkGeek for more details.