AVI-8 Spitfire Lock ChronographvsZenith Pilot Big Date Flyback
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Spitfire Lock Chronograph

Pilot Big Date Flyback
Diameter
42mm
42.5mm
Lug-to-Lug
50mm
n/a
Thickness
12mm
n/a
Water Resistance
50m
100m
highest
Power Reserve
n/a
60h
MSRP
$260
lowest
$12,800
Movement
Quartz
n/a
Case
7 specsCrystal & Dial
2 specsMovement
6 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.
Owners widely praise the Zenith Pilot Big Date Flyback for its visually striking cerulean blue ceramic case and dial, corrugated dial design referencing early aviation, and the satisfyingly smooth action of its flyback chronograph and big date complication. Reviewers and owners alike highlight the exceptional button action and buttery-smooth movement operation, with many noting the big date mechanism's instantaneous, audible, and satisfying change. The 42.5mm case is generally considered to wear slimmer and smaller than its dimensions suggest, though some find the flat wear and lug curvature less than ideal for wrist comfort. One owner notes the watch's impressive lume-filled numerals and artificial-horizon bar at six. On balance, owners and reviewers rate the Zenith Pilot Big Date Flyback highly for its functional pairing of a high-frequency flyback chronograph and big date complication within a modern and visually appealing design.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.







