Hemel HD24 AutomaticvsIsotope Hydrium

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HD24 Automatic
HemelHD24 Automatic

MSRP $300

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Buy from Hemel Used on eBay
Hydrium
IsotopeHydrium

MSRP $1,701

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Buy from Isotope Used on eBay

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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.

Hemel HD24 Automatic at true scale

HD24 Automatic

Isotope Hydrium at true scale

Hydrium

Diameter

40mm

40mm

Lug-to-Lug

48mm

n/a

Thickness

13mm

12.9mm

lowest

Water Resistance

200m

300m

highest

Power Reserve

n/a

68h

MSRP

$300

lowest

$1,701

Movement

Seiko NH38

La Joux-Perret G101

Case

5 specs
Thickness
13mm
12.9mm
Lug-to-Lug
48mm
n/a
Lug Width
20mm
n/a
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Gallant USAF Edition
n/a

Movement

2 specs
Caliber
Seiko NH38
La Joux-Perret G101
Power Reserve
0h
68h

Pricing

1 specs
MSRP
$300
$1,701
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