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Black Bay GMT Black Dial
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Black Bay GMT Black Dial
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Black Bay GMT Black Dial

Reference Number 79830RB-0001
Available in Store
WRISTCHECK GRADE
10
Case & Bracelet
10
Dial & Hands
10
Movement
10
Timing Results
9
Box & Original Papers
Contact Wristcheck presentation poster
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Description

The Tudor Black Bay GMT is an iconic model that houses Tudor’s own manufactured Calibre MT 5652. Featuring a 41mm case composed of stainless steel, the watch is waterproof up to...

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Wristcheck Buyer Protection

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Authenticity guaranteed

Every single watch listed on Wristcheck is carefully inspected, authenticated and tested alongside strict industry guidelines by our in-house Swiss-trained watchmakers.

Comprehensive Grading

Our 10-point grading system carefully evaluates every aspect of a watch: from its case and bracelet to its movement and timing – so you know exactly what you’re paying for.

Free shipping & 7-day returns

We’re offering free shipping on all orders, and a 7-day return policy for online orders. If the watch you receive is not as described, you can request a return within seven days and send it back to us — completely free of charge.

Specifications

Case
Size (mm)
41
Bezel Material
Stainless Steel
Crystal
Sapphire
Dial Color
Black
Dial Numbers
Indexes, Luminescent
Material
Stainless Steel
Bracelet / Strap
Strap Color
Stainless Steel
Strap Material
Stainless Steel
Strap Clasp
Folding Clasp
Strap Clasp Material
Stainless Steel
Movement
Movement
Selfwinding
Movement Caliber
Calibre MT5652
Power Reserve
70
Other
Water Resistance
200m
Number of Jewels
26
Functions
Hours, Minutes, Seconds, Date, GMT

Condition Photos

Condition Grading & Timing Results

10
This watch is considered a modern watch with an overall score of 10.

Watch Condition
Case & Bracelet
10
Dial & Hands
10
Movement
10

Cosmetic inspections are conducted for the first three grading categories: Case & Bracelet, Dial & Hands, and Movement.

Our Wristcheck Professional Services specialists examine our watches from all angles under a microscope. They have been trained to evaluate, repair and authenticate watches with over 20 years of combined experience.

Timing Results
Timing Results
9

Timing results are measured with a Witschi Chronoscope X-1 timing machine in 5 positions as per industry standards.

RateBeatAmplitude
Average-0.80.1290
Delta6.60.244

About
Tudor

The Founder

Named after the eponymous English royal family, Tudor was established in 1926 by the founder of Rolex, Hans Wilsdorf. With Tudor, Wilsdorf aimed to produce more affordable timepieces that paralleled Rolex’s standards of reliability and quality. Today, Tudor watches are celebrated for their high-precision movements, contemporary look, and value for money.

History
Iconic Models and Watches

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100%
Authenticity
All watches listed on Wristcheck are guaranteed authentic. They’re rigorously inspected and tested alongside strict industry parameters by our Swiss-trained watchmakers. We also work with a number of watch brands directly.
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