Limited Edition of 1000 Pieces. Ball Watch Company Engineer II Timetrekker Limited Edition GM9020C-SC-BK. The Ball Watch Company Engineer II Timetrekker is a professional tool for mavericks, challengers and outliers, those who take risks because it makes an impact. Break boundaries with the ingenuity patented quick set push buttons and a day night indicator. Endure frozen terrain with the strength of 904L steel and defy darkness with the unstoppable glow of micro gas tubes. In the face of challenge, charge forward with toughness engineered to outlast.