Replaced with T0554171105700 Stainless steel case with a stainless steel bracelet. Fixed stainless steel bezel. Black dial with luminous hands and index hour markers. Minute markers. Arabic numerals mark the 3, 9 and 12 o'clock position. Minute markers. Tachymeter scale around the outer rim. Luminescent hands and dial markers. Date display at the 4 o'clcok position. Chronograph - three sub-dials displaying: 60 seconds, 30 minutes and 1/10th of a second. Quartz movement. Scratch resistant sapphire crystal. Solid case back. Case diameter: 39 mm. Case thickness: 12 mm. Folding deployment clasp. Water resistant at 200 meters / 660 feet. Functions: hours, minutes, seconds, date, chronograph, tachymeter. .