The Oyster Perpetual Yacht-Master 40 in Oyster steel and with an Oyster bracelet.
This model features a slate dial and a bidirectional rotatable bezel in platinum with a raised 60-minute graduation and numerals. The waterproof and robust qualities of this model make it the ideal watch for water sports and sailing in particular.
Introducing the CADISEN New Watch – a must-have for any diving enthusiast. This automatic mechanical watch not only provides reliable timekeeping, but also encourages the imagination to explore new adventure stories. The watch features a high-quality Japanese Seiko NH35 automatic mechanical movement with a 42-hour power reserve. This movement is known for its accuracy and durability, and we guarantee a daily error rate of no more than ±5 seconds at the factory.
The watch also boasts a fully brushed stainless steel strap, case and 120 Clicks Chronograph Bezel for a durable and stylish look. The strap is heavier and more textured than other materials, and the markers and hands on the dial are equipped with Swiss BGW9 blue luminous technology for easy timekeeping in low light. Plus, the watch is waterproof up to 100m, making it suitable for most aquatic activities such as swimming and snorkeling.
In addition to the watch, you will also receive a CADISEN designed watch box, manual, and cloth. Plus, we offer a 30-day no-questions-asked return policy and a 2-year warranty for your peace of mind.
**Warm tip: To ensure proper functioning, please remember to manually wind the watch upon receipt. Simply unscrew the crown, rotate it 30 times, and then tighten it again. This will provide a full 42-hour power reserve. After that, the watch will wind itself automatically through the oscillating weight in the movement, as long as you wear it for at least 10 hours a day.
Videos taken with real watches


















FAQ
1. How to do if there is water inside the watch?
If there is only a small amount of water vapor inside the watch, the water vapor will automatically disappear over time, or wearing the watch on your wrist upside down, two hours later, the water vapor will automatically disappear. If there are some drops inside the watch, you should repair the watch as soon as possible.
2. Special note:
Fully automatic mechanical watches, relying on the motion of the arm and automatic winding, so must wear more than 8 hours a day to ensure timely and accuracy. Part of the automatic mechanical watch on a chain can also manually on the chain to supplement energy, method is under the conditions of buttons don’t pull out, 15 circle clockwise. Is not automatic chain on the manual and automatic mechanical watch, cannot make up by manual chain on energy.
3. Warning:
Watch pointer to 8 p.m. until 4 am the next day, all the time, please don’t adjust calendar, week speed-dial buttons and press the months. Otherwise, it will appear the phenomenon of calibration is ineffective, and may make speed-dial buttons infarction damage to push again, movement will be damaged. Mechanical watches should be away from television, computers and other things with magnetic fields, so as not to affect the watch work.