AVI-8 Spitfire Lock ChronographvsSternglas Tachymeter
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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.

Spitfire Lock Chronograph

Tachymeter
Diameter
42mm
42mm
Lug-to-Lug
50mm
50mm
Thickness
12mm
10mm
lowest
Water Resistance
50m
50m
MSRP
$260
lowest
$312
Movement
Quartz
Miyota OS20
Case
3 specsCrystal & Dial
2 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely appreciate the AVI-8 Spitfire Lock Chronograph's compelling design, drawing inspiration from Supermarine Spitfires with details like a prominent crown and rivets, and find the build quality excellent for the price. The watch features a 42mm stainless steel case with curved lugs for wearability, a bi-compax layout with subdials for elapsed time and a 24-hour scale, and black lume that glows green. Some owners note that AVI-8 watches offer something different and are decently well-made, though not of insane quality, and one reviewer found the included leather strap and bracelet to be the weakest aspects. On balance, owners and reviewers rate the AVI-8 Spitfire Lock Chronograph highly for its striking design and good value at its price point.
The Sternglas Tachymeter is praised for its sporty chronograph design and wrist presence, offering character without being an overt tool watch. Reviewers note an upscale design with a colored aluminum bezel insert and more colorful dial options compared to its predecessor. The watch is considered good value for its design, functionality, and small-brand cachet, with a charming youthfulness in its colorful dial options. One reviewer points out that the "orange" on one model appears yellow and suggests a tachymeter scale extending to 200 would be more useful than the current 500. Overall, owners and reviewers rate the Sternglas Tachymeter highly for its competitive price and appealing, youthful design.
The value at the moderate price point is a strength. The use of a meca-quartz movement is a weakness. Reviewers disagree on whether the meca-quartz movement is a drawback.
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