37.00 mm case diameter, black dial signed CROTON, luminous block numerals with outer tachymetre chapter ring, luminous steel baton hands with red center chronograph seconds hand, 30 minute subdial at 3 o'clock with red triangle 5-minute countdown, 60 seconds subdial at 9 o'clock, subdials with glossy black bezel, bidirectional turning bezel calibrated to 60 units, chronograph pushers at 2 and 4 o'clock, screw on case back, Valjoux 7733 17 jewel manual wind movement signed CROTON TIME CORP, later stainless steel matte link bracelet, adjustable fold over clasp.
Inner case back stamp: CROTON TIME CORP SWISS.
Case back stamp: WATER + SHOCKRESISTANT ALL STAINLESS STEEL SWISS MADE 953019 105 B 84227.