More likely, the correctly specified C63 Sapphire GMT COSC LE on which the COSC certificate had been lost and simply sold without it.IDB123 wrote:
C63 Sapphire GMT- 1.5 years old; +\- 1 second per day. (This watch was a “special” without COSC certificate and has a SW330-2 movement, I suspect regulated by CW before sale).
Guy
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