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Black Bay GMT
1 Variant
Retail MSRP
$5,275
Low
—
Avg
—
High
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Static data
Case
41mm
Power Reserve
70h
Movement
Automatic
Water Resistance
200m
01
Case Dimensions
Diameter41mm
Thickness14.6mm
Lug-to-Lug—
Lug Width22mm
02
Case Build
MaterialStainless Steel
FinishPolished + Satin
Water Resistance200m
CasebackSolid screw-down
03
Crystal & Dial
CrystalSapphire
Dial ColorBlack
04
Movement
Caliber
TypeAutomatic
Beat Rate—
Power Reserve70 hours
Jewels—
HackingNo
Hand-WindingNo
ComplicationsGMT
05
Design Language
Dial styleMatte
Bezel24-hour (GMT)
Bracelet / strapLug-attached bracelet
HandsBaton
AI-detected from product image · 5/22/2026
In a nutshell
The Tudor Black Bay GMT (ref. m79830rb-0001) is an automatic gmt watch, with a 41mm stainless steel case, 14.6mm thick, powered by the MT5652 movement and a 70-hour power reserve. Water resistance is rated to 200m, under a sapphire crystal, with gmt complications. Manufacturer MSRP is $5,275.