Side by side

Fortis Flieger F-43 BicompaxvsNivada Grenchen Antarctic GMT

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

Flieger F-43 Bicompax
FortisFlieger F-43 Bicompax
MSRP $4,180
Antarctic GMT
Nivada GrenchenAntarctic GMT
MSRP $1,740

At a glance

16 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Antarctic GMT38mm
Power Reserve
Flieger F-43 Bicompax58h
Antarctic GMT42h
Water Resistance
Flieger F-43 Bicompax200m
Antarctic GMT50m
MSRP
Flieger F-43 Bicompax$4,180
Antarctic GMT$1,740

Full specifications

Case

8 specs
Category
Chronograph
GMT
Diameter
43mm
38mm
Thickness
14.5mm
11.1mm
Lug-to-Lug
42mm
Lug Width
22mm
20mm
Finish
Brushed and polished
Brushed + Polished + Satin
Water Resistance
200m
50m
Caseback
Solid
Engraved

Crystal & Dial

2 specs
Dial Color
Original
Black
Lume
None
Super-LumiNova C3

Movement

5 specs
Caliber
Sellita SW510 BH a
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
58h
42h
Jewels
27
25
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$4,180
$1,740

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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.

Fortis Flieger F-43 Bicompax

Owners widely praise the Fortis Original for its tool-watch aesthetic, legibility, and robust construction, with many noting excellent lume that lasts all night and precise day/date changes at midnight. The brushed stainless steel case is well-finished, and the 38mm size is considered comfortable and well-weighted despite being smaller than modern watches. Accuracy figures range from +2 seconds/day to +8 seconds/day, and some owners compare Fortis quality favorably to Omega. However, some users find the MSRP too high compared to brands like Sinn and Damasko, and one owner reported internal parts dislodging from a limited edition model. Concerns have also been raised about stripped lug screws on B-42 models and potential parts shortages due to past bankruptcy protection filings. Overall, owners rate the Fortis Original highly for its durable construction and tool-watch functionality at a competitive price point.

Nivada Grenchen Antarctic GMT

The Nivada Grenchen Antarctic GMT is widely praised for its authentic retro charm and excellent 36mm case proportions, with reviewers highlighting its faithful 1970s revival design and warm aesthetic. The watch features a Super Compressor-style case, a boxed Plexiglass crystal, and a caller-style Soprod C125 GMT movement with a 42-hour power reserve. However, its 50-meter water resistance is considered acceptable but not robust for a sporty watch, and the GMT hand is noted as being short and difficult to read by some. The internal bezel's tactile feedback could be stronger, and the Plexiglass crystal scratches easily. On balance, reviewers find the Nivada Grenchen Antarctic GMT to be a compelling retro-vintage option for smaller-cased GMTs, particularly for its design and compact sizing at its price point.

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