Milgauss White (pre-owned) - around HK$34K - 35K, (balance-trade imported brand new) - HK$37K.
Milgauss GV (Brand New) - very firmed with listed price which is HK$48600.
Except Ken and Powanloi, you may consider "Kuen Kee" and "Kwai Yan".
www.kkwatch.com
www.kwaiyanwatch.com
Hope this help.