Blancpain Fifty Fathoms AutomatiquevsSpinnaker Fleuss 40 Automatic

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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.

Fifty Fathoms Automatique

Fleuss 40 Automatic
Diameter
38.2mm
40mm
Lug-to-Lug
n/a
47mm
Thickness
12mm
11mm
lowest
Water Resistance
300m
highest
150m
Power Reserve
100h
n/a
MSRP
$24,100
$450
lowest
Movement
1153
Seiko NH35
Case
7 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 praise the Blancpain Fifty Fathoms Automatique for its timeless design, high-quality finishing, and excellent legibility, with generously applied Super-LumiNova for brightness. The 38.2mm case is described as surprisingly stealthy yet substantial and wearable daily, though one owner found the 38mm size too small. The sapphire crystal bezel is noted as virtually scratch-proof and more expensive to produce than ceramic. Some reviewers point to an uncommon 21.5mm lug width and the lack of quick-release spring bars as drawbacks. Overall, owners and reviewers rate the Blancpain Fifty Fathoms Automatique highly for its blend of timeless design and high-quality finishing.
The Spinnaker Fleuss 40 Automatic is noted as a good size for smaller wrists, with one owner finding it comfortable on a 6.25-inch wrist. However, the lume is considered too diffuse for easy nighttime reading of the hands. The pilot-style crown is an unusual design choice for a dive watch. Overall, owners and reviewers find the Spinnaker Fleuss 40 Automatic to be a well-sized and comfortable watch with a unique crown design.
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