Perhjaps Dan or someone else can clarify my understanding of the information on the chart regarding the 1171/1 bracelet. If I read the table correctly, it appears that the 1171/1 was used from approximately 1977/78 to until about 1993/94 on reference 145.0022. If I remember correctly, though, didn't the 145.0022 only span the years 1981 through 1988? Before 1981 it was tthe reference 145.022 and after 1988 it was the reference 3590.50. So the two sets of dates don't equate. To compound matters further, the notes below the table say that the 1171/1 bracelet was used from 1970 through 1990. So I'm wondering (i) was the 1171/1 used only as a service bracelet?; (ii) if so, for 1970 through 1990?; and (iii) if not, which reference(s) was it used for and duirng which years of production?