Two Japanese High Accuracy Quartz Watches, One Wrist
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The two watches seen here
The two watches seen here are:
Grand Seiko SBGP007, a Limited Edition 60th Anniversary model
The Citizen Chronomaster AQ4041-54L
Both of these watches are rated to deviate only five seconds in a year. They are high accuracy quartz movements, Grand Seiko's 9F85 and The Citizen's A060. Note that the Grand Seiko 9F85 movement is normally rated for ten seconds per year, but this model, with the five-pointed gold star on its dial, has been tuned for even better performance. I already have videos showing that this Grand Seiko has only deviated three seconds in one year; I intend to test and validate The Citizen for similar results. These kinds of videos are in my Wristwatch Performance playlist:
Wristwatch Performance
The Grand Seiko is stainless steel and uses a battery cell.
The Citizen Chronomaster is titanium and has a solar-charged cell.
The red tab is a strap extender tool, since I had to wear one of the watches further up the wrist.
Grand Seiko SBGP007, a Limited Edition 60th Anniversary model
The Citizen Chronomaster AQ4041-54L
Both of these watches are rated to deviate only five seconds in a year. They are high accuracy quartz movements, Grand Seiko's 9F85 and The Citizen's A060. Note that the Grand Seiko 9F85 movement is normally rated for ten seconds per year, but this model, with the five-pointed gold star on its dial, has been tuned for even better performance. I already have videos showing that this Grand Seiko has only deviated three seconds in one year; I intend to test and validate The Citizen for similar results. These kinds of videos are in my Wristwatch Performance playlist:
Wristwatch Performance
The Grand Seiko is stainless steel and uses a battery cell.
The Citizen Chronomaster is titanium and has a solar-charged cell.
The red tab is a strap extender tool, since I had to wear one of the watches further up the wrist.
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در تاریخ 1402/03/09 منتشر شده
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