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.

Stratoliner S-41

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 specsCrystal & Dial
3 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
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.
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.
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.
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