Side by side

Fortis Flieger F-43 BicompaxvsNivada Grenchen Antarctic Diver Aquamar

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 Diver Aquamar
Nivada GrenchenAntarctic Diver Aquamar
MSRP $1,050

At a glance

15 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Antarctic Diver Aquamar38mm
Power Reserve
Flieger F-43 Bicompax58h
Antarctic Diver Aquamar38h
Water Resistance
Flieger F-43 Bicompax200m
Antarctic Diver Aquamar200m
MSRP
Flieger F-43 Bicompax$4,180
Antarctic Diver Aquamar$1,050

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
43mm
38mm
Thickness
14.5mm
12.9mm
Lug-to-Lug
46mm
Lug Width
22mm
16mm
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
Original
Black
Lume
None
Super-LumiNova

Movement

5 specs
Caliber
Sellita SW510 BH a
Sellita SW200
Beat Rate
28,800 vph
4 vph
Power Reserve
58h
38h
Jewels
27
25
Complications
None
GMT

Pricing

1 specs
MSRP
$4,180
$1,050

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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 Diver Aquamar

The Nivada Grenchen Antarctic Diver Aquamar is widely praised for its innovative changeable lume feature, allowing users to switch between white and beige lume via a disc tied to the date mechanism. Owners appreciate its 38mm stainless steel case and sandwich dial, available in blue, black, or grey. One reviewer notes that legibility on the grey dial may be a concern, and the hands' lume color is fixed. The watch is powered by a Soprod P024 movement with a 38-hour power reserve, which some owners have reservations about, though it is considered good value at $1,050. On balance, owners and reviewers rate the Nivada Grenchen Antarctic Diver Aquamar highly for its unique lume complication and overall value proposition.

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