DESC: Mfr: Weems and Plath - 220700; Temperature compensated, aneroid movement, fully adjustable Inch and milibar scales Calibrated for altitudes to 3500' above sea level Movements for altitudes from 3500' to 7000' available Lifetime warranty The Chrome Atlantis Collection: Weems & Plath has given a contemporary look to our traditional Atlantis Collection. The fine chrome plating on the solid brass case adds timeless depth and luster to the exterior, while the precision movements used inside maintain the traditional quality expected from any instrument carrying the Weems & Plath name. The screw bezel allows easy access to the movement while the unit is mounted.