Grand Seiko 61GS ref. 6156-8040 I'm selling my 61GS, very rare reference only produced a few months by Grand Seiko. The case is in excellent condition, with a beautiful mirror/brushed finish. Dimensions, 35.6mm \* 40.5mm \* 11.5mm thicc The very special ''sand dial'' is stunning, some small marks on the edges that can be seen in the photos. This dial plays perfectly with light, alternating between off-white and gray. Crystal in perfect condition. One of the best Grand Seiko movement in the 70's, 36 000 bph with day and date quickset. Watch serviced in November 2020 in Japan by it's previous owner. A report can be provided. Beautifull Rado Strap 18mm The gold medallion on the case back is a little damaged. Pictures and timestamp : https://imgur.com/a/2CXYCYb I'm asking 1700 euros, i can ship everywhere. Payment with wise or Paypal. I can be interested by a trade with Seiko Alpinist SCVF009, Seiko Alpinist Sorts 200 green dial or Seiko Morpho 3883. Ask me if you have any question !