Side by side
Hemel HD24 AutomaticvsLongines MASTER COLLECTION
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
22 of 29 specs differDiameter
HD24 Automatic40mm
MASTER COLLECTION25.5mm
Power Reserve
HD24 Automatic40h
MASTER COLLECTION45h
Water Resistance
HD24 Automatic200m
MASTER COLLECTION30m
MSRP
HD24 Automatic$300
MASTER COLLECTION$6,350
Full specifications
Case
9 specsCategory
Diver
—
Diameter
40mm
25.5mm
Thickness
13mm
9mm
Lug-to-Lug
48mm
30.6mm
Lug Width
20mm
13mm
Material
316L Stainless Steel
Gold
Finish
Brushed and polished
—
Water Resistance
200m
30m
Caseback
Solid
Transparent case back with sapphire crystal
Crystal & Dial
6 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Gallant USAF Edition
Silver
Indices
Applied
Painted Arabic numerals
Lume
None
Super-LumiNova
Movement
6 specsCaliber
Seiko NH38A
L592.5
Power Reserve
40h
45h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date
Pricing
1 specsMSRP
$300
$6,350
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