Brushed and polished stainless steel case (42 mm in diameter, 15 mm thick), Snap-down case-back with a sapphire aperture over the balance wheel and engraved with the Greenwich Observatory
Silver dial, Black luminescent hands, Printed indices and applied black Arabic numerals, Date aperture at the 3 o'clock position
Swiss-automatic Movement
Case Diameter: 42mm
Water Resistant To 165 Feet