Side by side

Hemel HD24 AutomaticvsNorthern Star Watch Sentinel

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
Sentinel
Northern Star WatchSentinel
MSRP $649
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Buy from Northern Star Watch ↗
Buy used on eBay ↗

At a glance

12 of 29 specs differ
Diameter
HD24 Automatic40mm
Sentinel40.5mm
Power Reserve
HD24 Automatic40h
Sentinel42h
Water Resistance
HD24 Automatic200m
Sentinel50m
MSRP
HD24 Automatic$300
Sentinel$649

Full specifications

Case

7 specs
Category
Diver
—
Diameter
40mm
40.5mm
Thickness
13mm
10.1mm
Lug-to-Lug
48mm
43.72mm
Lug Width
20mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
50m

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Gallant USAF Edition
White

Movement

2 specs
Caliber
Seiko NH38A
Miyota 90S5
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$300
$649
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