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Return To ShopThe Miyota caliber 0S30 is a quartz chronograph watch movement. It is sometimes incorrectly referred to as OS3O, but it should be zero-S-3-zero. This movement features several functions, including hours, minutes, a central chronograph seconds hand, a 60 minute counter located at 12:00, a 12 hour hand positioned at 9:00, and a small seconds subdial at 6:00.
The Seiko Y771-5030 features the following functions:
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