Side by side

Fortis Stratoliner S-41vsSugess Seestern S430 Titanium Diver

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
Seestern S430 Titanium Diver
SugessSeestern S430 Titanium Diver
MSRP $299

At a glance

14 of 29 specs differ
Diameter
Stratoliner S-4141mm
Seestern S430 Titanium Diver40mm
Power Reserve
Stratoliner S-4160h
Seestern S430 Titanium Diver40h
Water Resistance
Stratoliner S-41200m
Seestern S430 Titanium Diver200m
MSRP
Stratoliner S-41$5,450
Seestern S430 Titanium Diver$299

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
41mm
40mm
Thickness
14mm
12.5mm
Lug-to-Lug
46mm
Lug Width
21mm
20mm
Material
Stainless Steel
Titanium

Crystal & Dial

2 specs
Dial Color
White
Blue
Lume
None
Tritium

Movement

5 specs
Caliber
Manufacture Caliber WERK 17
Seiko NH35
Beat Rate
28,800 vph
3 vph
Power Reserve
60h
40h
Jewels
36
25
Complications
None
GMT, Chronograph, Moonphase, Date

Pricing

1 specs
MSRP
$5,450
$299

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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.

Sugess Seestern S430 Titanium Diver

Owners widely praise the Sugess Seestern S430 Titanium Diver for its genuine titanium construction, making it extremely light and comfortable at 92 grams on a 6.7-inch wrist. The ceramic bezel is described as fantastic and mesmerizing to use, and the brushed finishing is noted as nice. The watch features an NH38 movement, which is appreciated for its lack of ghost date functionality. However, some owners find the price comparable to competitors and have noted issues with the clasp's fit, with some finding the existing holes insufficient and the rotating arm needing to bend. The crown unscrewing is not smooth, and the bezel action is described as gritty with uneven resistance. One owner reported a crown tube failure on a V1 model. Overall, owners rate the Sugess Seestern S430 Titanium Diver highly for its lightweight titanium build and excellent ceramic bezel, despite some concerns regarding the clasp design.

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