Side by side

Fortis Stratoliner S-41vsPraesidus A-5 UDT

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

Stratoliner S-41
FortisStratoliner S-41
MSRP $5,450
A-5 UDT
PraesidusA-5 UDT
MSRP $645

At a glance

11 of 29 specs differ
Diameter
Stratoliner S-4141mm
A-5 UDT38mm
Power Reserve
Stratoliner S-4160h
A-5 UDT40h
Water Resistance
Stratoliner S-41200m
A-5 UDT200m
MSRP
Stratoliner S-41$5,450
A-5 UDT$645

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
41mm
38mm
Thickness
14mm
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
White
Blue

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
Miyota 9015
Power Reserve
60h
40h
Jewels
36
25

Pricing

1 specs
MSRP
$5,450
$645

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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 Stratoliner S-41

Owners widely praise the Fortis Stratoliner S-41 for its purpose-built design and outstanding details, particularly its space blue lume and bright orange date on the dial. Reviewers note the WERK 17 movement offers a 60-hour power reserve. However, the Fortis Stratoliner S-41's 41mm case thickness and lug-to-lug distance lead some to perceive it as wearing large, and the dial's small text and flat design are flagged as potential drawbacks. Overall, owners and reviewers highlight the Fortis Stratoliner S-41's unique design and innovative movement as its primary strengths.

Praesidus A-5 UDT

The Praesidus A-5 UDT is noted for its historically inspired design, featuring an oversized crown cap and chain that pays homage to WW2 canteen watches. Reviewers highlight its functional dial with embossed, Super-LumiNova filled numerals and markers for legibility, alongside 200m water resistance and a 38mm brushed stainless steel case. Some owners find the 11.7mm thickness problematic, describing it as disproportionately tall. The watch's ana/digi functionality and connection to special operations forces are also praised. On balance, owners and reviewers appreciate the Praesidus A-5 UDT for its unique historical design elements and functional dial.

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