Side by side
Borealis Watch Co. Estoril 300 GMTvsCWC Tamar Quartz Divers Watch
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Estoril 300 GMT41.50mm
Tamar Quartz Divers Watch41mm
Power Reserve
Estoril 300 GMT40h
Tamar Quartz Divers Watch40h
Water Resistance
Estoril 300 GMT300m
Tamar Quartz Divers Watch300m
MSRP
Estoril 300 GMT$600
Tamar Quartz Divers Watch$749
Full specifications
Case
4 specsDiameter
41.50mm
41mm
Thickness
13.5mm
12mm
Lug-to-Lug
47mm
47mm
Lug Width
20mm
20mm
Crystal & Dial
2 specsDial Color
Black
CWC Tamar Quartz Divers Watch
Lume
BGW9
Super-LumiNova
Movement
2 specsCaliber
Miyota 9075
Ronda 517
Type
Automatic
Quartz
Pricing
1 specsMSRP
$600
$749
Follow this matchup
Get a note when Borealis Watch Co. Estoril 300 GMT vs CWC Tamar Quartz Divers Watch 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.
CWC Tamar Quartz Divers WatchvsBoldr Odyssey FreediverChristopher Ward C60 LympstonevsCWC Tamar Quartz Divers WatchCWC Tamar Quartz Divers WatchvsSpinnaker Tesei TitaniumBaltic Aquascaphe TitaniumvsCWC Tamar Quartz Divers WatchBorealis Watch Co. Estoril 300 GMTvsCWC SBS Black Ice Quartz WatchBorealis Watch Co. Estoril 300 GMTvsCWC RN Quartz Divers Watch Mk.2, Matte Top









