Grand Seiko Spring Drive Chronograph SBGC003 Trendy 5 mm thick

5 mm thick

Bezel: 18K Rose Gold

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Case: two-tone 18K rose gold/steel

Grand Seiko Spring Drive Chronograph SBGC003 Trendy 5 mm thickGrand Seiko Spring Drive Chronograph SBGC003 The Grand Seiko SBGC003 Spring Drive Chronograph GMT is an example of one of the most difficult timepieces to build at Seiko's Shinshu Watch Studio, in the Nagano prefecture of Japan. The 416 part 9R86 caliber found in the SBGC003 is all constructed by hand, by only 3 craftsmen at Shinshu Watch Studio. Only capable of building 2 3 movements per day, the 9R86 contains over 50 jewels, 140 oil points, and 5