Side by side
Borealis Watch Co. Caloura 300mvsMaen Greenwich 38 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
The bottom line
The 38mm Greenwich 38 GMT wears 4mm narrower than the 42mm Caloura 300m — that's a meaningful jump on most wrists.
Check prices & track
Borealis Watch Co. Caloura 300m
MSRP $275
Maen Greenwich 38 GMT
MSRP $799
At a glance
12 of 29 specs differDiameter
Caloura 300m42mm
Greenwich 38 GMT38mm
Power Reserve
Caloura 300m40h
Greenwich 38 GMT40h
Water Resistance
Caloura 300m300m
Greenwich 38 GMT100m
MSRP
Caloura 300m$275
Greenwich 38 GMT$799
Full specifications
Case
7 specsCategory
Diver
GMT
Diameter
42mm
38mm
Thickness
13.9mm
12mm
Lug-to-Lug
44.20mm
—
Lug Width
22mm
—
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
3 specsCrystal
Sapphire
Domed Sapphire
Dial Color
Black
MGG.01
Lume
BGW9
None
Movement
1 specsCaliber
NH35
—
Pricing
1 specsMSRP
$275
$799
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