Side by side
Hemel HD24 AutomaticvsSeiko Prospex Sea 1968 Heritage Diver's GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
HD24 Automatic40mm
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
HD24 Automatic40h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
HD24 Automatic200m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
HD24 Automatic$300
Prospex Sea 1968 Heritage Diver's GMT$1,500
Full specifications
Case
4 specsDiameter
40mm
42mm
Thickness
13mm
12.9mm
Lug-to-Lug
48mm
48.6mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
4 specsCrystal
Domed Sapphire
Sapphire
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Gallant USAF Edition
Black
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH38A
6R54
Power Reserve
40h
72h
Jewels
25
24
Pricing
1 specsMSRP
$300
$1,500
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