Side by side
Hemel HD24 AutomaticvsTudor 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
HD24 Automatic40mm
Black Bay 58 GMT39mm
Power Reserve
HD24 Automatic40h
Black Bay 58 GMT65h
Water Resistance
HD24 Automatic200m
Black Bay 58 GMT200m
MSRP
HD24 Automatic$300
Black Bay 58 GMT$5,525
Full specifications
Case
8 specsCategory
Diver
GMT
Diameter
40mm
39mm
Thickness
13mm
12.8mm
Lug-to-Lug
48mm
—
Lug Width
20mm
12.8mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Gallant USAF Edition
Black
Movement
7 specsCaliber
Seiko NH38A
MT5450-U
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
65h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT
Pricing
1 specsMSRP
$300
$5,525
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