KEF develops wristwatch seal for ASTRONAUT’S use

aerospace o-rings

Accuracy and reliability are important for use in space. This watch seal’s specifications are waterproof up to 1000 meter deep and must withstand temperatures of -20°C~+70°C. A product is developed using our newest raw material compound, proving high quality and reliability. Since Oct. 2008, astronauts have used this inside and outside of a spacecraft, and the exact time is displayed continuously.