The Dive Watch Connection

$330 for a Seiko SKX173 :shh: I think that's cheaper than IWW or Tony V. Nick's claim of Vickers Hardness rating is 50% greater than Jack's process. If I recall correctly Sinn is at some 2000 HV, IWW is 4000HV and he says his is 5000 to 6000 HV. That's huge. Cheaper and harder. The charge for DLC j...