This is a vintage 1970’s Longines Ultra-Chron Chronometer measuring 35mm. in stainless steel with screw-back, original winding crown, original dial and hands and is spectacular overall condition. This two-tone reflective dial is amazing to gaze upon! I love the offset date. This watch is sleek and slim. The fine automatic chronometer grade movement was just cleaned and is accurate. These Longines watches are vastly overlooked and undervalued.