Side by side

Fortis Flieger F-43 BicompaxvsGrand Seiko SBGE307

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
SBGE307
Grand SeikoSBGE307
MSRP $11,500

At a glance

13 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
SBGE30744.5mm
Power Reserve
Flieger F-43 Bicompax58h
SBGE30772h
Water Resistance
Flieger F-43 Bicompax200m
SBGE307200m
MSRP
Flieger F-43 Bicompax$4,180
SBGE307$11,500

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
43mm
44.5mm
Thickness
14.5mm
14.9mm
Lug-to-Lug
50mm
Lug Width
22mm
23mm
Material
Stainless Steel
Titanium

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Original
Black

Movement

4 specs
Caliber
Sellita SW510 BH a
9R66
Type
Automatic
Spring Drive
Power Reserve
58h
72h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$11,500

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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 SBGE307

The Grand Seiko SBGE307 is praised for its unique "lion's mane" textured ivory dial and angular, modern titanium case featuring Zaratsu polishing. Reviewers highlight the aggressive, claw-shaped lugs and the contrasting hairline finishing, as well as the brownish-red GMT hand as a notable accent. The watch is powered by the 9R66 Spring Drive movement, offering a 72-hour power reserve and accuracy rated at +/- 15 seconds per month by one source, and +/- 1 second per day by another. It is priced at $10,700 USD and offers 200m water resistance. On balance, reviewers find the Grand Seiko SBGE307 to be a striking timepiece distinguished by its textured dial and sharp case finishing.

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