BOLDR Supply Co. Field Medic StealthvsFortis Stratoliner S-41

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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.

BOLDR Supply Co. Field Medic Stealth at true scale

Field Medic Stealth

Fortis Stratoliner S-41 at true scale

Stratoliner S-41

Diameter

38mm

41mm

Lug-to-Lug

44mm

n/a

Thickness

12.2mm

lowest

14mm

Water Resistance

200m

200m

Power Reserve

n/a

60h

MSRP

$299

lowest

$5,450

Movement

Seiko VK64

Fortis WERK 17

Case

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

Crystal & Dial

1 specs
Dial Color
n/a
White

Movement

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

Pricing

1 specs
MSRP
$299
$5,450
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

BOLDR Supply Co. Field Medic Stealth

The BOLDR Supply Co. Field Medic Stealth is widely praised for its 38mm case size and lightweight titanium construction, making it exceptionally wearable for daily use. Owners appreciate its robust 200m water resistance and sapphire crystal, contributing to its durable feel. The pulsometer function is noted as a unique and fun, if not always practical, addition that serves as a conversation starter. Some owners find the lume to be weak, and the small subdials can be difficult to read. One owner notes the bead-blasted titanium case is prone to scratches and feels almost too light on the included NATO strap. Overall, owners rate the BOLDR Supply Co. Field Medic Stealth highly for its comfortable wearability and unique functional features at its price point.

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.