Fortis Stratoliner S-41vsBOLDR Supply Co. Rally

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Fortis Stratoliner S-41 at true scale

Stratoliner S-41

BOLDR Supply Co. Rally at true scale

Rally

Diameter

41mm

38mm

Lug-to-Lug

n/a

44mm

Thickness

14mm

12.2mm

lowest

Water Resistance

200m

200m

Power Reserve

60h

n/a

MSRP

$5,450

$299

lowest

Movement

Fortis WERK 17

Seiko VK64

Case

5 specs
Diameter
41mm
38mm
Thickness
14mm
12.2mm
Lug-to-Lug
n/a
44mm
Lug Width
21mm
20mm
Material
Stainless Steel
Titanium

Crystal & Dial

3 specs
AR Coating
n/a
Yes
Dial Color
White
I - Wells 008 (Updated)
Lume
None
Super-LumiNova

Movement

5 specs
Caliber
Fortis WERK 17
Seiko VK64
Type
Automatic
Meca-Quartz
Beat Rate
28,800 vph
0 vph
Power Reserve
60h
0h
Jewels
36
0

Pricing

1 specs
MSRP
$5,450
$299
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Reviews

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 intentional orange date wheel, space blue lume, and all-brushed case finishing. Reviewers and owners alike highlight the innovative WERK 17 movement and its purpose-built design for space. However, one owner found it wore too large due to its case thickness and lug-to-lug distance, while another noted the dial's small text and flat design as potential drawbacks. On balance, owners and reviewers appreciate the Stratoliner S-41 for its unique design details and robust build, though its wearability and dial presentation are points of contention for some.

From video reviewers

The Fortis Werk 17 movement—space-tested and manufacture-built—anchors a tank-like tool watch with exceptional lume brightness, anti-reflective dial treatment, and a quality bracelet with quick-adjust clasp. The 41mm case wears considerably larger due to long strut lugs extending to 50.4mm, a utilitarian design choice that dominates wrist presence even on smaller wrists.

BOLDR Supply Co. Rally

Owners widely praise the Boldr Rally's 38mm titanium case and robust construction, with one owner noting its "bulletproof" build and excellent lume after four years. The Seiko VK64 mecaquartz movement is also a highlight, with one user reporting uninterrupted performance for over three years. While some find the dial busy and difficult to read due to small font and dark hands on a dark subdial, others appreciate its complexity and the clean design with a regatta timer-inspired subdial. The fabric strap is noted as not holding up well to daily wear, and the bead-blasted titanium case can be a scratch magnet, with some finding the watch too light on a NATO strap. Overall, owners rate the Boldr Rally highly for its excellent value and compact, durable titanium case.

From video reviewers

The 38mm titanium case with a 44mm lug-to-lug measurement provides a comfortable and compact fit. The 200m water resistance is noted as robust for a chronograph. The 14mm thickness was mentioned as potentially substantial for the watch's size.