Casio EFV-650DvsNezumi Studios Tonnerre
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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.

EFV-650D

Tonnerre
Diameter
43.5mm
38mm
Lug-to-Lug
48.6mm
45.5mm
lowest
Thickness
11mm
lowest
11.8mm
Water Resistance
100m
highest
50m
MSRP
$120
lowest
$423
Movement
Quartz
Seiko VK63
Case
6 specsCrystal & Dial
3 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Casio EFV-650D for its value, costing less than half of comparable models and including illumination. The chronograph layout is noted as different from typical chronographs, which some find affects the user experience despite an attractive look. The 43.5mm case size is considered intimidating by some for smaller wrists, with one owner questioning its suitability as a first chronograph. One owner finds the watch "sick" and is considering upgrading the mineral crystal to sapphire. Overall, owners rate the Casio EFV-650D highly for its value and illumination, despite some reservations about its chronograph layout and case size.
The Nezumi Studios Tonnerre is widely praised for its comfortable 38mm case, sharp finishing, and retro design, with many owners appreciating its quality and presentation exceeding expectations for its price point. The Seiko VK63 meca-quartz movement offers reliable accuracy, and the dial colors and textures are frequently highlighted as unique and attractive features, complemented by a good quality strap. Some owners find the chronograph sub-dial hands' chromatic arrangement for the 24-hour indicator to be an unnecessary aesthetic choice, and a few have expressed disappointment with customer service or found the chronograph's sub-dial alignment prone to issues. On balance, owners and reviewers rate the Nezumi Tonnerre highly for its compelling retro aesthetic and excellent finishing at its price point.
The watch features a 38mm brushed stainless steel case that fits smaller wrists well. The 5 ATM water resistance is limited for a tool-oriented chronograph.
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