Tudor · Model Reference
Tudor Black Bay GMT
A robust travel watch with an independently adjustable local-hour hand and classic two-colour bezel.
Launch2018
Reference79830RB / reference dependent
TypeGMT / travel watch
Case41 mm
Market Pricing · July 2026
Price guide.
What affects value
Exact reference, case material, dial variant, size, movement generation, condition, service history, full set and whether components are original or service replacements.
Indicative European market ranges in EUR. Exact value depends on reference, configuration, condition, originality, service history, completeness and current demand. This is editorial guidance, not a purchase offer or investment advice.
Model story.
The Black Bay GMT expands Tudor’s dive-watch language into a practical travel watch with local time, home time and date.
Movement
Automatic Tudor manufacture calibre MT5652
Water resistance
200 metres
Production status
Current collection
Collector note
Earlier examples should be checked for documented movement service and date-function performance.
Buyer guide.
Test local-hour adjustment, date change, GMT alignment, bezel action and movement history.
TimeHunter Insight
Serious travel functionality with a recognisable Tudor identity and strong value.