1575 — the 1570 with a calendar

In brief

Only the date separates the 1575 from the 1570. Architecture and frequency are shared, both sit in the same generation of the 15xx family, and the calendar is the one real difference between them.

Short history

The 1560 gave way to the 1570 when the frequency went up; the 1575 arrived as that same generation's calendar version, aimed at references that wanted a tool watch's toughness with a date to read. It ran in the catalogue alongside the 1570 for the same span of years, until the 3035 family replaced both in the late 1970s.

Watches that used it

• Rolex GMT-Master (ref. 1675, some series)
• Rolex Submariner Date (ref. 1680)