Side by side
Hemel HD24 AutomaticvsTudor Black Bay 58 18K
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
18 of 29 specs differDiameter
HD24 Automatic40mm
Black Bay 58 18K39mm
Power Reserve
HD24 Automatic40h
Black Bay 58 18K70h
Water Resistance
HD24 Automatic200m
Black Bay 58 18K200m
MSRP
HD24 Automatic$300
Black Bay 58 18K$22,550
Full specifications
Case
6 specsDiameter
40mm
39mm
Thickness
13mm
12.7mm
Lug-to-Lug
48mm
46mm
Material
316L Stainless Steel
18k Yellow Gold
Finish
Brushed and polished
Satin
Caseback
Solid
Solid screw-down
Crystal & Dial
5 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Gallant USAF Edition
Green
Indices
Applied
—
Movement
6 specsCaliber
Seiko NH38A
MT5400
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Pricing
1 specsMSRP
$300
$22,550
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