Side by side

Fortis Flieger F-43 BicompaxvsGrand Seiko SLGB003

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
SLGB003
Grand SeikoSLGB003
MSRP $11,400

At a glance

14 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
SLGB00337mm
Power Reserve
Flieger F-43 Bicompax58h
SLGB00372h
Water Resistance
Flieger F-43 Bicompax200m
SLGB003100m
MSRP
Flieger F-43 Bicompax$4,180
SLGB003$11,400

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
Titanium
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
$11,400

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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 SLGB003

Grand Seiko SLGB003 owners widely praise its lightness and comfort, with a dial that offers a shifting character in different lighting conditions. Reviewers note its compact case size enhances wearability and versatility across wrist sizes. However, one owner found the dial underwhelming, and another reported a date disc issue with lower numbers not changing correctly. Some question the value proposition at around $10,000, citing the bracelet and dial as potential drawbacks, while others highlight the movement and smaller dimensions as significant positives. On balance, owners rate the Grand Seiko SLGB003 highly for its movement and compact dimensions, despite some reservations about the dial and bracelet.

From video reviewers

The watch's exceptional accuracy is a notable strength, with both reviewers highlighting its precise timekeeping. A weakness is the relatively high price point compared to other Grand Seiko models. Reviewers disagree on the ideal case size, with one reviewer noting it's relatively small at 37mm, while the other doesn't mention case size as a concern.

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