Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsFortis Flieger F-43 Bicompax

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

OSAR-D (Original SAR with Date) Automatic 41mm
MarathonOSAR-D (Original SAR with Date) Automatic 41mm
MSRP $1,800
Flieger F-43 Bicompax
FortisFlieger F-43 Bicompax
MSRP $4,180

At a glance

12 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Flieger F-43 Bicompax43mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Flieger F-43 Bicompax58h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Flieger F-43 Bicompax200m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Flieger F-43 Bicompax$4,180

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
41mm
43mm
Thickness
13mm
14.5mm
Lug-to-Lug
43.5mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Black
Original

Movement

3 specs
Caliber
Sellita SW220-1
Sellita SW510 BH a
Power Reserve
40h
58h
Jewels
25
27

Pricing

1 specs
MSRP
$1,800
$4,180

Follow this matchup

Get a note when Marathon OSAR-D (Original SAR with Date) Automatic 41mm vs Fortis Flieger F-43 Bicompax gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon OSAR-D (Original SAR with Date) Automatic 41mm

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is noted for its highly legible white dial with applied hour markers and a functional date magnifier, emphasizing its tool-watch purpose. Its Swiss-made Sellita SW200-1 movement is considered reliable and serviceable. One reviewer found the bracelet lacked refinement and preferred the rubber strap option. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 41mm for its excellent legibility and robust movement.

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.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.