Casio EFB-730DvsCorniche Corniche Chronograph
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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.

EFB-730D

Corniche Chronograph
Diameter
40mm
39mm
Lug-to-Lug
47mm
n/a
Thickness
11mm
lowest
11.5mm
Water Resistance
100m
highest
50m
MSRP
$165
lowest
$425
Movement
Quartz
Seiko VK64
Case
6 specsCrystal & Dial
2 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 EFB-730D for its 40mm size, which is considered perfect for smaller to medium wrists and versatile for strap changes with its 20mm lug width. The subtle sunburst blue dial is noted as classy and better in person than in photos, and the overall finish is considered quite good for the price. Some owners find the constantly running central seconds hand impractical, while others appreciate its straightforward Casio quartz reliability and value around $150. One owner reported the second hand sticking on the minute hand, and another found the 47mm lug-to-lug measurement wore larger than expected. Overall, owners rate the Casio EFB-730D highly for its comfortable wearability and attractive design at the price point.
Owners widely praise the Corniche Chronograph for its premium look and finishing, often highlighting its elegant and classy appearance and attractive dial depth, especially considering its price point around $400-$455. The 39mm case size is frequently cited as a positive, though some find it too small. The Seiko VK64 meca-quartz movement is noted by some as basic, while others are unbothered by it. One owner flagged a poorly mounted plaque on the case side, and another pointed out a potential misstep with a "mile" marking on the tachymeter scale. Overall, owners rate the Corniche Chronograph highly for its noble and high-quality appearance at the price.
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