5 pcs per type OR 45 pcs/ set ( 9 types ) Stainless Screws for ETA 7750 Movement #5106 ~ Screw for barrel & train wheel bridge #5121 ~ Screw for balance bridge #5415 ~ Screw for ratchet wheel #5445 ~ Screw for setting lever jumper #51142 ~ Screw for automatic device bridge #51143 ~ Screw for oscillating weight #52535 ~ Screw for date indicator maintaining plate #58140 ~ Screw #58200 ~ Screw for lock Stem