Comfort style and intelligence all come together in the Edifice EF527D-1AV. Smaller rounded band segments allow its solid stainless steel band to hug the wrist with more comfort while a knurled bezel precision dial indexes and mineral glass give the timepiece a stylish technical look. Inside a 1/20th Chronograph and rotating Slide Rule allow for precision measurement and calculations such as time speed fuel consumption and more.100M Water Resistant1/20 second chronographSlide rule functionDate DisplayMineral GlassScrew Lock CrownScrew Lock BackSolid Stainless Steel BandDouble-lock 1-press 3-fold buckle