Side by side
Hemel Sky Racer MechanicalvsTudor Black Bay One 31
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Sky Racer Mechanical43mm
Black Bay One 3131mm
Power Reserve
Sky Racer Mechanical40h
Black Bay One 3150h
Water Resistance
Sky Racer Mechanical50m
Black Bay One 31100m
MSRP
Sky Racer Mechanical$550
Black Bay One 31$4,600
Full specifications
Case
9 specsCategory
Chronograph
Diver
Diameter
43mm
31mm
Thickness
14mm
9.5mm
Lug-to-Lug
49mm
46mm
Lug Width
20mm
17mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
50m
100m
Caseback
Solid
Solid screw-down
Crystal & Dial
2 specsCrystal
Domed Sapphire
Sapphire
Dial Color
Black
Anthracite
Movement
3 specsCaliber
Seagull ST19
MT5201
Type
Manual
Automatic
Power Reserve
40h
50h
Pricing
1 specsMSRP
$550
$4,600
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