Gnomon-exclusive OVM39. Just now graphed it at +3.7 seconds per day.
Sized the bracelet to my 7.25" wrist and wore it a few times, but hardly a mark to show for it.
Full kit, original box and papers. $400 regular G&S Paypal gets it shipped USPS Priority mail anywhere in the U.S. only.
No trades, no lower offers please, price is firm.
Can email more pix if needed, just let me know where to. Thanks for looking.