Pentax

USCamera Import black rewind knob assembly for the Pentax  K1000 (Old), Spotmatic Series, Canon AE-1, A1, Vivitar A3000, and A3800 35mm film cameras.  I found these to fit, and work properly. As with any rewind knob, tighten the knob to the rewind shaft by holding the knob body. Used genuine Pentax replacements are in stock here. Note the Old style K1000 has 3 screws on the bottom cover, and bottom cover is made of metal as well as the battery cover.