Seiko YT57B Technical Manual

8, 8 TECHNICAL GUIDE Cal. YT57B Lubricating: : Moebius A 22 Oscillating weight bridge screw 24 Oscillating weight bridge · Before tightening the oscillating weight bridge screw, check that the upper pivot of the generating rotor is inserted properly into the pivot jewel. · Be sure…

5, 5 PARTS CATALOGUE Cal. YT57B Remarks: 3 Holding ring for dial 0866 636 The type of holding ring for dial is determined based on the design of cases. Check the case number and refer to “SEIKO Casing Parts Catalogue” to choose a corresponding holding ring for dial. Color of background White …

12, Seiko YT57B 12 TECHNICAL GUIDE Cal. YT57B 2. With the tester connected to the circuit block, short-circuit “A” portion in the illustration and the input terminal (–) with conductive tweezers or the like for more than 3 seconds. The IC will be switched from the quick start to the normal hand move…

6, 6 TECHNICAL GUIDE Cal. YT57B Place the movement directly on the riveting plate shown in the illustration with the oscillating weight down, so that the oscillating weight screw is not damaged. Then, press in the hands. 12 Oscillating weight screw Tighten the oscillating weight screw f…

7, 7 TECHNICAL GUIDE Cal. YT57B • How to remove Insert the tip of tweezers into the “C” portion gap in the illustration at right, and pry up the rechargeable battery unit to remove it. • How to install Set the “A” portion of the minus lead terminal to the hole of the main plate…

3, 3 PARTS CATALOGUE Cal. YT57B ➡ Please see the remarks on the following pages. Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”. 12 0022 490 Oscillating weight screw 13 0500 661 Oscillating weight 16 4225 519 Rechargeable battery clamp 15 0022 247 Rechargeab…