accuracy of the Corum 137-425-47-0025-EB34 WoMen's watch movement

In the final steps of the assembly of the 9S, each balance wheel is subjected to final adjustment in a surprising way to ‘lock-in’ the accuracy of the Corum 137-425-47-0025-EB34 WoMen's watch movement.Rather than having a balance wheel with adjustable screws or a gyromax system, Seiko uses a labor intensive process that leaves very little room for trial and error.The watchmakers painstakingly remove tiny amounts of material from a solid balance wheel in order to perfectly adjust the watch the first time.

Why: Because we're tired of teasing you with replica Breitling Aeromarine Super Men's watch pictures, now we want you to see the real thing.If you plan on attending, please let us know by responding here via facebook or by shooting us an email.We'd just like to know how many to expect.Oh and finally, yes there will be a bit of booze on hand.What more do you need? Here is a link to the auction catalog.See you there! . Hodinkee in Announcements, Antiquorum, Auctions, Hodinkee Events Monday, November 30, 2009 at 3:05PM

The result is a balance wheel that is perfectly adjusted and cannot be modified from the beginning.The final adjustment can only be made with the Corum 137-424-47-0026-EB34 WoMen's watch hairspring, a process that is also done manually.Once the watches are completed, they are subjected to a 17 day quality control test adjusting to temperature and 6 positions.In the end, Grand Seiko mechanical watches are accurate to -3 to +5 seconds per day compared to COSC at -4 to +6 seconds per day.