Side by side

Borealis Watch Co. Estoril 300 GMTvsFortis Flieger F-43 Triple-GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Estoril 300 GMT
Borealis Watch Co.Estoril 300 GMT
MSRP $600
Flieger F-43 Triple-GMT
FortisFlieger F-43 Triple-GMT
MSRP $4,840

At a glance

11 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Flieger F-43 Triple-GMT43mm
Power Reserve
Estoril 300 GMT40h
Flieger F-43 Triple-GMT56h
Water Resistance
Estoril 300 GMT300m
Flieger F-43 Triple-GMT200m
MSRP
Estoril 300 GMT$600
Flieger F-43 Triple-GMT$4,840

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
41.50mm
43mm
Thickness
13.5mm
14mm
Lug-to-Lug
47mm
Lug Width
20mm
22mm
Water Resistance
300m
200m

Crystal & Dial

2 specs
Dial Color
Black
Original
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9075
Sellita SW330-2
Power Reserve
40h
56h

Pricing

1 specs
MSRP
$600
$4,840

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Borealis Watch Co. Estoril 300 GMT

Owners widely praise the Borealis Watch Co. Estoril 300 GMT for its excellent value, robust build quality, and crisp dial, with reviewers highlighting its exceptionally bright BGW9 lume and dive-ready ceramic bezel. Some owners appreciate the brushed and polished finishes, though one owner noted a desire for a white-painted second hand. The included NATO strap is considered too thick with a loose weave, and the sapphire bezel insert is seen by some as a minor aesthetic departure from its inspirations. Overall, owners rate the Borealis Watch Co. Estoril 300 GMT highly for its impressive build quality and value.

Fortis Flieger F-43 Triple-GMT

The Fortis Flieger F-43 Triple-GMT is widely praised for its stunning dial execution, COSC-certified Kenissi WERK 13 movement with a 70-hour power reserve, and legible Brixtrack luminous indices. Owners and reviewers highlight the surprisingly wearable 43mm titanium case and bracelet, noting its lightness and comfort despite the size, with one source specifically mentioning a quick-adjustable extension. The watch offers 200m water resistance and features a Synchroline indicator. However, some owners note the titanium scratches easily and the bracelet can be difficult to size. The watch is priced at €4,500. On balance, owners and reviewers rate the Fortis Flieger F-43 Triple-GMT highly for its purpose-focused pilot's watch design and innovative movement.

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