Side by side

Boldr Expedition EnigmathvsFortis Flieger F-39

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

Expedition Enigmath
BoldrExpedition Enigmath
MSRP $599
Flieger F-39
FortisFlieger F-39
MSRP $2,530

At a glance

11 of 29 specs differ
Diameter
Expedition Enigmath41mm
Flieger F-3939mm
Power Reserve
Expedition Enigmath42h
Flieger F-3938h
Water Resistance
Expedition Enigmath200m
Flieger F-39200m
MSRP
Expedition Enigmath$599
Flieger F-39$2,530

Full specifications

Case

4 specs
Category
Tool
Pilot
Diameter
41mm
39mm
Thickness
12.8mm
11.5mm
Lug-to-Lug
47.5mm
46mm

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enigmath Coconino
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Miyota 9039,
Sellita SW200-1
Power Reserve
42h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$599
$2,530

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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.

Boldr Expedition Enigmath

The watch's slide rule function is a convenient feature, allowing for calculations on the go. One potential drawback is the use of the Japanese Miyota 9039 movement, which may be a trade-off for some buyers. Reviewers disagree on whether the quick 'on the fly' adjust bracelet is a more significant advantage than the watch's sapphire crystal for durability and scratch resistance.

Fortis Flieger F-39

Owners and reviewers widely praise the Fortis Flieger F-39 for its robust build quality, excellent finishing often compared favorably to more expensive watches, and legible utilitarian dial with distinctive color accents. The watch is noted for its precise bidirectional bezel action, excellent lume, and comfortable wearability, with one owner reporting accuracy of 1 second fast per day. Some reviewers flag the 39mm case as wearing large due to its lug-to-lug distance, and the 38-hour power reserve of the Sellita SW 200-1 based UW-30 movement is cited as a limitation, though newer versions feature a 70-hour power reserve. Overall, owners and reviewers highly regard the Fortis Flieger F-39 for its tool watch aesthetic and impressive machining and build quality at its price point.

From video reviewers

The 200m water resistance is a notable strength. Reviewers did not reach a consensus on any weaknesses.

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