SERVICING MECHANICAL WATCHES
Seiko watches are designed to provide accurate and reliable service over a long period. However, like any sensitive precision instrument, a watch needs periodic servicing to ensure that it functions correctly. Frequency of such work depends on the climate and the owner’s individual care of the watch, but in general, we recommend having your watch serviced about every three years at an Authorised Seiko Service Centre.
The bracelet or strap is removed from the case. The case is opened, and the crown, pushers and glass are removed. The movement is then taken out.
CLEANING MOVEMENT PARTS
The movement is carefully disassembled, any worn out or damaged parts are replaced and then cleaned in an ultrasonic cleaning machine. In some cases, the movement will be entirely replaced.
RE-ASSEMBLY AND LUBRIFICATION OF MOVEMENT AND CASE PARTS
Once the movement parts are cleaned, they are re-assembled and delicately lubricated. A mechanical watch consists of 200-300 parts and some parts with high momentum perform hundreds of thousands of rotational motions per day.
To prevent watch parts from wearing out lubrication is required. Lubricant oil deteriorates after years of use and a service ensures proper functioning and extends the life of a watch.
CASE AND BRACELET CLEANING
The case and bracelet are cleaned in an ultrasonic tank. The case is serviced by replacement of all gaskets and silicone grease is applied.
The completed watch is then tested for timing, power reserve and water resistance. If the watch passes all tests, the bracelet or strap is reattached, and the watch is passed to the final Quality Control check.
The watch is then subjected to a stringent 50-point quality control check which tests all functions of the watch, and its condition. If the watch requires extra work, it is passed back to the Watchmaker who makes the required improvements. The watch is now ready for packing and shipping. All Serviced watches will come with a one-year Service Warranty.