Side by side

Jack Mason Strat-o-timer GMTvsTudor Black Bay 58

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Strat-o-timer GMT
Jack MasonStrat-o-timer GMT
MSRP $1,149
Black Bay 58
TudorBlack Bay 58
MSRP $5,350
Buy from Jack Mason ↗
Buy used on eBay ↗
Buy from Tudor ↗
Buy used on eBay ↗

At a glance

18 of 29 specs differ
Diameter
Strat-o-timer GMT42mm
Black Bay 5839mm
Power Reserve
Strat-o-timer GMT40h
Black Bay 5865h
Water Resistance
Strat-o-timer GMT200m
Black Bay 58200m
MSRP
Strat-o-timer GMT$1,149
Black Bay 58$5,350

Full specifications

Case

8 specs
Category
—
Diver
Diameter
42mm
39mm
Thickness
13.2mm
11.7mm
Lug-to-Lug
49mm
46mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
Crystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
—
Black

Movement

6 specs
Caliber
Miyota 9075
MT5400-U
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
65h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$1,149
$5,350
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