Side by side
Borealis Watch Co. Estoril 300 GMTvsIslander Islander Brookville Calligraphy Edition Watch with Blue Parchment Dial #ISL-320
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
Estoril 300 GMT41.50mm
Islander Brookville Calligraphy Edition Watch with Blue Parchment Dial #ISL-32038mm
Power Reserve
Estoril 300 GMT40h
Islander Brookville Calligraphy Edition Watch with Blue Parchment Dial #ISL-320—
Water Resistance
Estoril 300 GMT300m
Islander Brookville Calligraphy Edition Watch with Blue Parchment Dial #ISL-320100m
MSRP
Estoril 300 GMT$600
Islander Brookville Calligraphy Edition Watch with Blue Parchment Dial #ISL-320$499
Full specifications
Case
8 specsCategory
Diver
Dress
Diameter
41.50mm
38mm
Thickness
13.5mm
11mm
Lug-to-Lug
47mm
44.5mm
Lug Width
20mm
20mm
Finish
Brushed and polished
—
Water Resistance
300m
100m
Caseback
Solid
Exhibition
Crystal & Dial
4 specsAR Coating
Inner
Yes
Dial Color
Black
—
Indices
Applied
—
Lume
BGW9
None
Movement
4 specsCaliber
Miyota 9075
Miyota 9039
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Pricing
1 specsMSRP
$600
$499
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