Here we have a replacement quickset star for the SEIKO 56 series movements. This is the part that commonly fails on this movement, which means you cannot set the day/date. This is now a revised part for 2021. The new design has a revised tooth shape that increases the amount of lift on the calendar teeth and reduces the torque required to set the calendar. The 8 point star works better than the 4 point star, so I now only make this type.

THE ENTIRE LEVER ASSEMBLY IS NOT PART OF THE SALE, YOU ARE BUYING THE STAR ONLY. THE IMAGE OF THE ENTIRE LEVER AND THE MOVEMENTS ARE ONLY PROVIDED TO SHOW THE PART IN PLACE.

It is designed for the 5605, 5606 LORD-MATIC, 5625, 5626 KING SEIKO, 5645, 5646 KING SEIKO and WORLD TIME 5619 movements which have the plastic quickset star installed. Some of these movements have a metal quickset star, which does not have the slipping problem, so you will need to check the part before purchasing.

IT IS CRITICAL FOR THE 5619 THAT THE CALENDAR INTERMEDIATE WHEEL HAS A MINIMAL AMOUNT OF SHAKE. DUE TO THE INCREASED TORQUE REQUIREMENTS TO MOVE THE GMT ASSEMBLY, EXCESS SHAKE MAY CAUSE THE STAR TO UNDERRIDE THE INTERMEDIATE WHEEL. TIGHTER IS BETTER.

The replacement part is made from stainless steel and is resistant to rust.

It is recommended you replace the crown gasket at the same time, as an old gasket will increase the amount of torque put on the quickset assembly, which could cause other issues. It is also best to check for any other problems in the keyless works during assembly, as the 56 series movements have a lot of parts in this area and any that are damaged could cause problems.

The part is intended to be installed by a professional watchmaker and requires specialist tools to fit. It cannot be fitted without disassembly of the entire quickset lever assembly. A staking set with a good range of stakes at a minimum would be required.

It will allow some amount of slip on the assembly as per the original part as a safety measure if the setting is used between 9pm and 4am. It is highly recommended that no day/date setting is done over this period however to prevent further wear.

THE ENTIRE LEVER ASSEMBLY IS NOT PART OF THE SALE, YOU ARE BUYING THE STAR ONLY. THE IMAGE OF THE ENTIRE LEVER AND THE MOVEMENTS ARE ONLY PROVIDED TO SHOW THE PART IN PLACE.

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I NOW HAVE AN INSTRUCTIONAL VIDEO ON FITTING OF THIS PART -

https://www.youtube.com/watch?v=nVtN460e7Uw&feature=youtu.be

NEW!! TROUBLESHOOTING TIPS -

https://youtu.be/Xr7kR8MSQPo

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Here is my video explaining the issue and showing the replacement part in operation -

https://www.youtube.com/watch?v=i8wP8zEc2Og&t=69s

For more assistance with watch related questions and general chat, I'd recommend joining the WristSushi forum - 

www.wristsushi.com

My blog site is here -

www.vintagetimeaustralia.com

This item has international tracked shipping.