Side by side

Fortis Stratoliner S-41vsBoldr Venture GMT

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
Venture GMT
BoldrVenture GMT
MSRP $299

At a glance

13 of 29 specs differ
Diameter
Stratoliner S-4141mm
Venture GMT38mm
Power Reserve
Stratoliner S-4160h
Venture GMT40h
Water Resistance
Stratoliner S-41200m
Venture GMT200m
MSRP
Stratoliner S-41$5,450
Venture GMT$299

Full specifications

Case

5 specs
Category
Chronograph
GMT
Diameter
41mm
38mm
Lug-to-Lug
44mm
Lug Width
21mm
20mm
Material
Stainless Steel
Titanium

Crystal & Dial

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

Movement

4 specs
Caliber
Manufacture Caliber WERK 17
Ronda 515
Type
Automatic
Quartz
Power Reserve
60h
40h
Jewels
36
25

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.

Boldr Venture GMT

Owners widely praise the Boldr Venture GMT for its lightweight titanium case and bracelet, utilitarian GMT function, and 200m water resistance, with many finding it a comfortable daily driver. The watch's faceted bracelet attachment, sapphire crystal, and attractive dials are also frequently highlighted, though some owners note the lume's visibility is hampered by blending numbers. Accuracy varies, with one owner reporting it runs 6 seconds fast over 25 days, while another finds the Miyota movement basic. Some users would prefer a 4 o'clock crown and a date window, and the clasp safety can be loose. Overall, owners rate the Boldr Venture GMT highly for its robust titanium build and practical GMT functionality at its price point.

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