Side by side

Fortis Flieger F-39vsPraesidus Vince Speranza A-11

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

Flieger F-39
FortisFlieger F-39
MSRP $2,530
Vince Speranza A-11
PraesidusVince Speranza A-11
MSRP $359

At a glance

13 of 29 specs differ
Diameter
Flieger F-3939mm
Vince Speranza A-1142mm
Power Reserve
Flieger F-3938h
Vince Speranza A-1140h
Water Resistance
Flieger F-39200m
Vince Speranza A-11100m
MSRP
Flieger F-39$2,530
Vince Speranza A-11$359

Full specifications

Case

7 specs
Category
Pilot
Field
Diameter
39mm
42mm
Thickness
11.5mm
Lug-to-Lug
46mm
49mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
NH35

Movement

3 specs
Caliber
Sellita SW200-1
Seiko NH35
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$2,530
$359

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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-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.

Praesidus Vince Speranza A-11

Owners widely praise the Praesidus Vince Speranza A-11 for its vintage aesthetic, readable dial, and distinctive top-hat crystal. However, community members report mixed accuracy, with one owner experiencing a gain of 24 seconds per day and another noting the lume on the hands is disappointing. One owner experienced a broken crystal after a drop, though it was replaced by the brand. On balance, owners appreciate the Praesidus Vince Speranza A-11 for its vintage charm and unique crystal, despite some reservations about lume and timekeeping consistency.

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