Rolex Sea-Dweller 16600

A dial that has aged from black to a brown or caramel color due to prolonged exposure to sunlight and elements. Highly prized for its unique and attractive aging. Greatly increases value due to unique appearance and collector demand.

Special dials produced for COMEX (Compagnie Maritime d'Expertises), featuring unique branding. Refers to Rolex watches issued to COMEX (a French diving company). Extremely rare and highly collectible. Substantially increases value due to rarity and association with professional diving.

A dial marked with "Swiss," indicating it was produced during the transition period from tritium to Super-LumiNova in the late 1990s.