Serial Number:5468883 (1977)
Calibre:3055,day and date,selfwind, twenty seven (27) jewels
Crystal:sapphire construction with cyclops (magnifier for date window).
Crown:twin lock Rolex original
Dial:gloss white finish with gold Roman numerals.
About this watch:The 18038 was produced from 1977-1990.It was the first model to be fitted with the sapphire crystal. Own this first year example with the confidence of a fully seviced and tested movement and new gaskets fitted to the case and ,a two year guarantee on performance.