A stainless steel Rolex Sea-Dweller 16660 AKA triple six transitional model, from 1994 SN: 81xxxxx. this model came after the first Sea-Dweller model 1665. from 1978 to 1988 fitted with the untouched black dial,original hands, original bracelet, original bezel and faded insert and it has the original rolex certificate punched from authorized rolex deal located Netherlands and original Rolex box, It is in great shape.