Side by side

Fortis Flieger F-43 BicompaxvsGrand Seiko SLGB006

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
SLGB006
Grand SeikoSLGB006
MSRP $43,600

At a glance

14 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
SLGB00637mm
Power Reserve
Flieger F-43 Bicompax58h
SLGB00672h
Water Resistance
Flieger F-43 Bicompax200m
SLGB006100m
MSRP
Flieger F-43 Bicompax$4,180
SLGB006$43,600

Full specifications

Case

7 specs
Category
Chronograph
Dress
Diameter
43mm
37mm
Thickness
14.5mm
11.4mm
Lug-to-Lug
44.3mm
Lug Width
22mm
20mm
Material
Stainless Steel
Gold
Water Resistance
200m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Original
Black

Movement

4 specs
Caliber
Sellita SW510 BH a
9RB2
Type
Automatic
Spring Drive
Power Reserve
58h
72h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$43,600

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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.

Grand Seiko SLGB006

The Grand Seiko SLGB006 is praised for its stunning "Ice Forest at Dawn" textured dial and 37mm 18k yellow gold case, with some finding it gorgeous enough to wear even if they don't typically prefer gold watches. It houses the Spring Drive Calibre 9RB2 movement, noted for its "Ultra Fine Accuracy" of ±20 seconds per year and a 72-hour power reserve. However, the Grand Seiko SLGB006 is considered expensive by some, with a price of $43,600 or €44,700 for its limited production of 80 pieces, and one owner suggests alternatives offer a more refined feel. The watch lacks the Evolution 9 micro-adjustment system. Overall, owners and reviewers highlight the Grand Seiko SLGB006's striking dial and movement accuracy as its primary strengths, despite its high price point and limited availability.

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