Side by side

Hemel HD24 AutomaticvsTimefactors Speedbird PRS-51

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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HD24 Automatic
HemelHD24 Automatic
MSRP $300
See the full HD24 Automatic
Speedbird PRS-51
TimefactorsSpeedbird PRS-51
MSRP $436
See the full Speedbird PRS-51
Buy from Hemel ↗
Buy used on eBay ↗
Buy from Timefactors ↗
Buy used on eBay ↗

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At a glance

13 of 29 specs differ
Diameter
HD24 Automatic40mm
Speedbird PRS-5136mm
Power Reserve
HD24 Automatic—
Speedbird PRS-51—
Water Resistance
HD24 Automatic200m
Speedbird PRS-51100m
MSRP
HD24 Automatic$300
Speedbird PRS-51$436

Full specifications

Case

7 specs
Category
Diver
—
Diameter
40mm
36mm
Thickness
13mm
11.4mm
Lug-to-Lug
48mm
42mm
Lug Width
20mm
18mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Gallant USAF Edition
Black
Lume
None
SuperLuminova X1-C3

Movement

2 specs
Caliber
Seiko NH38
Miyota 9015
Power Reserve
0h
—

Pricing

1 specs
MSRP
$300
$436
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All alternatives to the HD24 Automatic →All alternatives to the Speedbird PRS-51 →
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