Side by side
Borealis Watch Co. Estoril 300 GMTvsHemel HD24 Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Estoril 300 GMT41.50mm
HD24 Automatic40mm
Power Reserve
Estoril 300 GMT40h
HD24 Automatic40h
Water Resistance
Estoril 300 GMT300m
HD24 Automatic200m
MSRP
Estoril 300 GMT$600
HD24 Automatic$300
Full specifications
Case
6 specsDiameter
41.50mm
40mm
Thickness
13.5mm
13mm
Lug-to-Lug
47mm
48mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m
Crystal & Dial
3 specsCrystal
Sapphire
Domed Sapphire
Dial Color
Black
Gallant USAF Edition
Lume
BGW9
None
Movement
1 specsCaliber
Miyota 9075
Seiko NH38A
Pricing
1 specsMSRP
$600
$300
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