Side by side
Maystone Watch Co Prosperity GMTvsTudor Black Bay 58 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
20 of 29 specs differDiameter
Prosperity GMT38mm
Black Bay 58 GMT39mm
Power Reserve
Prosperity GMT41h
Black Bay 58 GMT65h
Water Resistance
Prosperity GMT100m
Black Bay 58 GMT200m
MSRP
Prosperity GMT$443
Black Bay 58 GMT$5,525
Full specifications
Case
8 specsCategory
—
GMT
Diameter
38mm
39mm
Thickness
11.9mm
12.8mm
Lug-to-Lug
46mm
—
Lug Width
20mm
12.8mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
100m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Red
Black
Lume
string
None
Movement
7 specsCaliber
Seiko NH34
MT5450-U
Beat Rate
28,800 vph
0 vph
Power Reserve
41h
65h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT
Pricing
1 specsMSRP
—
$5,525
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