Side by side
Hemel HD24 AutomaticvsSeiko Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
HD24 Automatic40mm
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition42mm
Power Reserve
HD24 Automatic40h
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition40h
Water Resistance
HD24 Automatic200m
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition100m
MSRP
HD24 Automatic$300
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition$2,400
Full specifications
Case
6 specsCategory
Diver
Chronograph
Diameter
40mm
42mm
Thickness
13mm
12.9mm
Lug-to-Lug
48mm
49.6mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m
Crystal & Dial
5 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
Gallant USAF Edition
Black
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Seiko NH38A
5X83
Type
Automatic
Quartz
Jewels
25
14
Pricing
1 specsMSRP
$300
$2,400
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