Revue Thommen Diver 17571.2257 is a two-tone automatic dive watch combining robust 42 mm stainless steel construction with a black dial and sapphire crystal. Designed for reliable underwater performance, it offers 30 ATM water resistance and luminous hands for visibility in low light. Key attributes: Silver | Rose gold | Black | Stainless steel | Water resistant to 30 ATM | Sapphire crystal | Automatic movement | Day calendar | Fold-over clasp | Black dial | Two-tone case and bracelet | Analog display | Luminous hands and indexes | Dimensions & fit: Case diameter: 42 mm | Bracelet width: 22 mm | Composition & care: Stainless steel | Rose gold plating | Sapphire crystal | Wipe with a soft cloth; avoid contact with chemicals and extreme temperatures; have water resistance checked periodically and service by an authorized watchmaker.