Side by side
Maystone Watch Co Prosperity GMTvsTudor Black Bay GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
21 of 29 specs differDiameter
Prosperity GMT38mm
Black Bay GMT41mm
Power Reserve
Prosperity GMT41h
Black Bay GMT70h
Water Resistance
Prosperity GMT100m
Black Bay GMT200m
MSRP
Prosperity GMT$443
Black Bay GMT$5,275
Full specifications
Case
8 specsCategory
—
GMT
Diameter
38mm
41mm
Thickness
11.9mm
14.6mm
Lug-to-Lug
46mm
46mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
100m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
5 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Red
Black
Indices
Applied
—
Lume
string
None
Movement
7 specsCaliber
Seiko NH34
MT5652
Beat Rate
28,800 vph
0 vph
Power Reserve
41h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT
Pricing
1 specsMSRP
—
$5,275
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