Knowledge Center

Professional Authentication Platform

Some specifications for this reference are on file; the record is incomplete.

Rolex · GMT-Master

GMT-Master

Ref. 6542

discontinuedFirst GMT-MasterPartially documentedLast reviewed Not yet reviewed

Reference photography not yet on file

The original GMT-Master, developed with Pan Am. Early Bakelite bezels are fragile and frequently replaced.

At a glance

Brand
Rolex
Collection
GMT-Master
Reference
6542
Production
1954–1959
Caliber
1036 / 1066
Case diameter
38mm
Case material
Stainless steel

Related references

Reference family timeline

Every generation in this lineage in production order. Spans are as documented; an open end means the reference is current or its end year is not established.

  1. 6542

    GMT-Master · 1036 / 1066

    1954–1959This reference
  2. 1675Pepsi

    GMT-Master · 1565 / 1575

    1959–1980
  3. 16750

    GMT-Master · 3075

    1981–1988Transitional
  4. 16700Pepsi

    GMT-Master · 3175

    1988–1999