Grand SEIKO [GRAND SEIKO] spring drive

Grand SEIKO spring drive Ref.SBWA002 7R68-0A20 yellow gold 1999

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GRAND SEIKO SPRING DRIVE Ref.SBWA002 7R68-0A20 YG Ca.1999
About the products
Manufacturers Grand Seiko
Model Spring drive Ref.SBWA002 7R68-0A20 yellow gold 1999
Movement Spring drive Cal.7R68
Case YG 37 mm
Bracelet strap YG pin buckle crocodile strap [unused]
Accessories Box certificate OH description
State Am A finishing, [OH]
Comments It is a spring drive-tech Seiko's quartz precision spring driven clock. In 1999, this limited edition from Seiko credor. Also while driving with hand wound mainspring can be controlled by Crystal achieves extremely high accuracy of a quartz clock. Rotate the rotor at the same time move the needle with the power of mainspring winding back Spring drive is, its rotary motion into electrical energy, driven to Crystal and adjust the rotation speed of the rotor, sync it to adjust the rotation speed of the needle that, revolutionary new speed mechanism トライシンクロレギュレーター ( TRI-SYNCHROREGULATOR ) is adopted. This is the structure of the power source, the wheels as well as mechanical watches a month difference, while ± within 15 seconds ( daily ± at 1 second within phase ) that high precision and realized the second hand moves smoothly, such as passage of time expressed as. 12/1999 To watch this spring drive with for the first time in the world from Seiko 2 species (yellow gold and stainless steel), credor 1 species (Platinum) limited sales from was. 2 Species and the caseback caseback specification, suitable for luxury goods, such as the beautiful plates decorated with Côtes de Genève pattern and a smooth rotor of rotating movement is also visually worthwhile. Also this movement, is one assembled by skilled technicians. It is appearance of OH has been with box and warranty card. Is higher than the list price, compared with the current clock price is one of the charms very cheap too.

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