Side by side
Borealis Watch Co. Porto CovovsIslander Islander Melville GMT with Blue Hammer Dial #ISL-222
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
18 of 29 specs differDiameter
Porto Covo40mm
Islander Melville GMT with Blue Hammer Dial #ISL-22240mm
Power Reserve
Porto Covo40h
Islander Melville GMT with Blue Hammer Dial #ISL-222—
Water Resistance
Porto Covo300m
Islander Melville GMT with Blue Hammer Dial #ISL-222100m
MSRP
Porto Covo$415
Islander Melville GMT with Blue Hammer Dial #ISL-222$369
Full specifications
Case
8 specsCategory
Diver
GMT
Diameter
40mm
40mm
Thickness
11.6mm
13mm
Lug-to-Lug
42.5mm
0mm
Lug Width
20mm
20mm
Finish
Brushed and polished
—
Water Resistance
300m
100m
Caseback
Solid
Screw-down
Crystal & Dial
5 specsCrystal Shape
Flat
Domed
AR Coating
Inner
Underside
Dial Color
Black
—
Indices
Applied
—
Lume
BGW9
None
Movement
4 specsCaliber
Miyota 9039
Seiko NH34
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Pricing
1 specsMSRP
$415
$369
Follow this matchup
Get a note when Borealis Watch Co. Porto Covo vs Islander Melville GMT with Blue Hammer Dial #ISL-222 gets more votes, a community discussion, or a price drop. No account needed.
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Baltic Aquascaphe Dual-CrownvsIslander Melville GMT with Blue Hammer Dial #ISL-222Baltic Aquascaphe TitaniumvsIslander Melville GMT with Blue Hammer Dial #ISL-222Baltic Aquascaphe BronzevsIslander Melville GMT with Blue Hammer Dial #ISL-222Geckota Ocean-Scout Dive WatchvsIslander Melville GMT with Blue Hammer Dial #ISL-222Borealis Watch Co. Porto CovovsSpinnaker Croft 39 GMTBorealis Watch Co. Porto CovovsSpinnaker Fleuss GMT










