Side by side

Oris Big Crown ProPilot Big DatevsFortis Flieger F-43 Bicompax

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

Big Crown ProPilot Big Date
OrisBig Crown ProPilot Big Date
MSRP $2,600
Flieger F-43 Bicompax
FortisFlieger F-43 Bicompax
MSRP $4,180

At a glance

17 of 29 specs differ
Diameter
Big Crown ProPilot Big Date41mm
Flieger F-43 Bicompax43mm
Power Reserve
Big Crown ProPilot Big Date38 hoursh
Flieger F-43 Bicompax58h
Water Resistance
Big Crown ProPilot Big Date100m
Flieger F-43 Bicompax200m
MSRP
Big Crown ProPilot Big Date$2,600
Flieger F-43 Bicompax$4,180

Full specifications

Case

7 specs
Category
Pilot
Chronograph
Diameter
41mm
43mm
Thickness
14.5mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Water Resistance
100m
200m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Blue
Original
Indices
Applied

Movement

5 specs
Caliber
751
Sellita SW510 BH a
Beat Rate
4 vph
28,800 vph
Power Reserve
38 hoursh
58h
Jewels
26
27
Complications
Date
None

Pricing

1 specs
MSRP
$2,600
$4,180

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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.

Oris Big Crown ProPilot Big Date

Owners and reviewers widely praise the Oris Big Crown ProPilot Big Date for its legible dial and comfortable 41mm size, with many noting its sharp, original design suitable for daily wear. Some reviewers flag the 38-hour power reserve as unimpressive for the price and suggest the movement's decoration could be improved, while others point out the "Big Date" complication is misleading and the bracelet lacks micro-adjustment. The cockpit-style clasp is a noted highlight. Overall, owners and reviewers rate the Oris Big Crown ProPilot Big Date highly for its legibility and comfortable wearability at its price point.

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.

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