Louis Erard 2300 Sport ChronographvsLongines Spirit Flyback Prototype


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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.

2300 Sport Chronograph

Spirit Flyback Prototype
Diameter
44mm
42mm
Lug-to-Lug
n/a
49.5mm
Thickness
n/a
17mm
Water Resistance
50m
100m
highest
Power Reserve
48h
n/a
MSRP
$4,146
lowest
$7,400
Movement
Valjoux 7750
Longines L791.4
Case
6 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners and reviewers highlight the Louis Erard 2300 Sport Chronograph's lightweight titanium case with satin finishing and polished bevels, which makes its 44mm size feel less cumbersome. The watch is noted for its retro-modern aesthetic and unique dial designs, with one owner appreciating the addition of a moon phase complication and its practical alternative to a dress watch. Reviewers point out that its 50m water resistance lags behind modern alternatives, and one found the rainbow minute track too subtle. Overall, owners and reviewers rate the Louis Erard 2300 Sport Chronograph well for its distinctive design and comfortable wearability in titanium at its price point.
Owners widely praise the Longines Spirit Flyback Prototype for its attractive finishing on the case and dial, COSC-certified L791.4 movement, and overall value as a flyback chronograph. Reviewers note its improved wearability due to a 47.4mm lug-to-lug distance and a thickness that, despite being listed as 17mm, wears closer to 13.5-14mm. However, the 17mm thickness is a significant drawback for some, making it difficult to wear under cuffs, and the leather strap is described as stiff. Owners are split on the dial's simplified look compared to previous models, with some preferring the earlier design elements. On balance, owners and reviewers rate the Longines Spirit Flyback Prototype highly for its refined finishing and value proposition, despite concerns regarding its case thickness.
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