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Rolex

Rolex GMT-Master 1675/3

“Root Beer”

The Rolex GMT-Master (reference 1675/3) is a 40 mm yellow gold / stainless steel watch with a brown dial. It runs on the automatic caliber 3075 and is water resistant to 100 m. It is no longer in production.

Specifications

Case

Reference
1675/3
Nickname
Root Beer
Collection
GMT-Master
Case size
40 mm
Case material
Yellow gold / stainless steel
Case shape
Round
Crystal
Sapphire
Water resistance
100 m
Bracelet / strap
Yellow gold / stainless steel

Dial and bezel

Dial
Brown
Bezel
Aluminum, brown/gold

Movement

Movement
Automatic
Caliber
3075
Functions
Date / GMT

Production

Production
Discontinued

Dial versions

This reference was made with these dials and finishes.

  • 1675/3 Root Beer

    Nipple indexes · “Root Beer”

  • 16753 Root Beer Nipple

    Nipple; gold markers · “Root Beer”

How it compares within the GMT-Master family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
1675/3 (This watch)40 mmYellow gold / stainless steelBrown3075—
1670040 mmStainless steelBlack31751988–1999
167540 mmStainless steelBlack15751959–
1675040 mmStainless steelBlack30751980–
1675840 mmYellow gold—30751981–
654240 mmYellow goldBlack—1954–1959

About the GMT-Master family

The GMT-Master was developed in 1954 with Pan American Airways for crews flying between time zones. Ref. 6542 combined a 24-hour hand with a rotating 24-hour bezel, first in Bakelite and soon in aluminium, often in the red and blue colours later nicknamed Pepsi.

The ref. 1675, made from around 1959 to 1980, added crown guards and is the classic vintage version. The 16750 brought a quickset date, and the 16700 ran until 1999, when the GMT-Master gave way to the GMT-Master II. Gold and two-tone versions such as the 16758 and 16753 exist alongside steel. On vintage pieces, dealers look closely at the dial type, the bezel insert's condition and originality, and service replacement parts.

Quick answers

What size is the Rolex GMT-Master 1675/3?
The Rolex GMT-Master 1675/3 has a 40 mm case.
What movement does the Rolex GMT-Master 1675/3 use?
It uses the automatic caliber 3075.
How water resistant is the Rolex GMT-Master 1675/3?
It is water resistant to 100 metres.
Is the Rolex GMT-Master 1675/3 still in production?
Discontinued.
What is the Rolex GMT-Master 1675/3 made of?
The case is yellow gold / stainless steel. Bracelet or strap: Yellow gold / stainless steel.
What is the Rolex GMT-Master 1675/3 nicknamed?
Dealers and collectors call it the “Root Beer”.

Catalog facts checked October 2026.