Side by side

Fortis Flieger F-39 Werk 7vsOak & Oscar The Jackson Big Eye

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

Flieger F-39 Werk 7
FortisFlieger F-39 Werk 7
MSRP $4,510
The Jackson Big Eye
Oak & OscarThe Jackson Big Eye
MSRP $3,150

At a glance

17 of 29 specs differ
Diameter
Flieger F-39 Werk 739mm
The Jackson Big Eye40mm
Power Reserve
Flieger F-39 Werk 738h
The Jackson Big Eye60 hoursh
Water Resistance
Flieger F-39 Werk 7200m
The Jackson Big Eye50m
MSRP
Flieger F-39 Werk 7$4,510
The Jackson Big Eye$3,150

Full specifications

Case

6 specs
Category
Pilot
Chronograph
Diameter
39mm
40mm
Thickness
11.5mm
14mm
Lug-to-Lug
46mm
46.4mm
Finish
Brushed and polished
Brushed
Water Resistance
200m
50m

Crystal & Dial

5 specs
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Black
White
Indices
Applied
Baton
Lume
None
Super-LumiNova

Movement

5 specs
Caliber
Werk 7 (Manufacture)
Eterna Caliber 39 (Cal. 3907M)
Type
Automatic
Manual
Beat Rate
28,800 vph
4 vph
Power Reserve
38h
60 hoursh
Jewels
26
25

Pricing

1 specs
MSRP
$4,510
$3,150

Follow this matchup

Get a note when Fortis Flieger F-39 Werk 7 vs Oak & Oscar The Jackson Big Eye 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.

Fortis Flieger F-39 Werk 7

The Fortis Flieger is widely praised for its superb readability, robust build quality, and phenomenal fit and finish, with reviewers noting the practical Type-A dial and utilitarian design. The F-39 models are noted to wear large due to their lug-to-lug distance, and the UW-30 movement offers a 38-hour power reserve, while other variants feature a 70-hour power reserve. On balance, reviewers highlight the Fortis Flieger's modern, stylish take on pilot's watches, balancing legibility with unique aesthetics.

Oak & Oscar The Jackson Big Eye

Oak & Oscar The Jackson Big Eye is praised for its balanced design and fine details, featuring a prominent "Big Eye" 30-minute sub-register for improved readability, reminiscent of vintage chronographs. It is powered by the Eterna EMC 3907M manual wind movement with a 60-hour power reserve, column wheel, and flyback function, housed in a 40mm stainless steel case. This limited edition of 50 pieces was priced at $3,150 and included two Horween leather straps and a wallet. On balance, reviewers highlight the Jackson Big Eye's enthusiast-spec chronograph function and readable subdial as key strengths.

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.