Hemel HD24 AutomaticvsOmega Seamaster 300
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

HD24 Automatic

Seamaster 300
Diameter
40mm
39mm
Lug-to-Lug
48mm
n/a
Thickness
13mm
n/a
Water Resistance
200m
200m
MSRP
$300
n/a
Movement
Seiko NH38
Omega 552
Case
6 specsDiameter
40mm
39mm
Thickness
13mm
n/a
Lug-to-Lug
48mm
n/a
Lug Width
20mm
n/a
Material
316L Stainless Steel
Stainless Steel
Caseback
n/a
Screw-in
Crystal & Dial
2 specsCrystal
Domed Sapphire
n/a
Dial Color
Gallant USAF Edition
Black
Movement
1 specsCaliber
Seiko NH38
Omega 552
Pricing
1 specsMSRP
$300
n/a
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