Side by side

Fortis Flieger F-43 BicompaxvsGrand Seiko SBGE253

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
SBGE253
Grand SeikoSBGE253
MSRP $6,900

At a glance

12 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
SBGE25340.5mm
Power Reserve
Flieger F-43 Bicompax58h
SBGE25372h
Water Resistance
Flieger F-43 Bicompax200m
SBGE253200m
MSRP
Flieger F-43 Bicompax$4,180
SBGE253$6,900

Full specifications

Case

5 specs
Category
Chronograph
GMT
Diameter
43mm
40.5mm
Thickness
14.5mm
14.7mm
Lug-to-Lug
48.7mm
Lug Width
22mm
20mm

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
$6,900

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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 SBGE253

Grand Seiko SBGE253 owners widely praise its 40.5mm stainless steel case, Zaratsu polishing, and the Spring Drive Calibre 9R66 movement, noting its exceptional accuracy of ±1 second per day or ±15 seconds per month and a 72-hour power reserve. The watch is considered versatile with its black dial and a true GMT complication, and the bracelet clasp is specifically lauded for its comfortable, wrist-contouring design. Some reviewers find the power reserve indicator placement cluttered, while others dislike the fixed bezel and repeated numbers on the rehaut and bezel. The Grand Seiko SBGE253 is available new for around $4k from Japanese dealers, a significant discount off MSRP. On balance, owners and reviewers rate the Grand Seiko SBGE253 highly for its blend of high-end finishing, accurate Spring Drive GMT movement, and comfortable wearability.

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