Rolex Pre-owned Sea Dweller 16660 Wristwatch. Used (very good) — Rank A Used: a few traces of usage; some scratches/dirt can be seen but overall in very good condition. Glass scratches: Insignificant; Dial: None; Hands: Insignificant; Case: Insignificant; Bezel: Insignificant; Crown: Insignificant; Case back: Insignificant; Bracelet: Insignificant; Maintenance: Polished; Accessories: None. Key attributes: Black | Stainless steel | Durable stainless steel construction | Date function | Self-winding (automatic) movement | 40mm case diameter | Black dial | Sport watch design | Stainless steel case and bracelet | Dimensions & fit: Regular fit | Composition & care: 100% stainless steel (case and bracelet) | Clean with a soft cloth. Have serviced by a qualified watchmaker periodically.