Side by side

AVI-8 Spitfire Lock ChronographvsFortis Stratoliner S-41

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Spitfire Lock Chronograph
AVI-8Spitfire Lock Chronograph
MSRP $260
Stratoliner S-41
FortisStratoliner S-41
MSRP $5,450

At a glance

12 of 29 specs differ
Diameter
Spitfire Lock Chronograph42mm
Stratoliner S-4141mm
Power Reserve
Spitfire Lock Chronograph40h
Stratoliner S-4160h
Water Resistance
Spitfire Lock Chronograph50m
Stratoliner S-41200m
MSRP
Spitfire Lock Chronograph$260
Stratoliner S-41$5,450

Full specifications

Case

5 specs
Diameter
42mm
41mm
Thickness
14mm
Lug Width
22mm
21mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
200m

Crystal & Dial

2 specs
Crystal
Mineral
Sapphire
Dial Color
MIDNIGHT OAK
White

Movement

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

Pricing

1 specs
MSRP
$260
$5,450

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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.

AVI-8 Spitfire Lock Chronograph

Owners widely report AVI-8 watches offer a compelling design and are decently well made for the price. The AVI-8 Spitfire Lock Chronograph features a 42mm stainless steel case with curved lugs, a bi-compax meca-quartz movement, and a mineral crystal, with design elements inspired by Supermarine Spitfires. One owner notes that AVI-8 watches are "something different" and "decently well made," though not of "insane quality." On balance, owners and reviewers appreciate the AVI-8 Spitfire Lock Chronograph for its unique design and value proposition.

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.

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