Rare Hamiton with Swiss Valjoux 7730 chronograph movement.
It winds, sets and keeps good time. The chronograph feature does work and resets.
The overall cosmetic condtion of the watch is in very good shape. Crystal is in good condition, it has wear/scratches visible in the center. Dial is in great condition. Case is in good to very good condition, has some normal wear from use. Back is in very good to good condition with normal wear. Band is a vintage stretch band and has some wear.
Dial is marked HAMILTON T SWISS
Back is marked STAINLESS STEEL HAMILTON SWISS
Movement is marked HAMILTON 643 SEVENTEEN 17 JEWELS UNADJUSTED SWISS 7730
Case measures 39MM wide including the crown and 42MM in length.