Casio EFB-730DvsSmiths PRS-40 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

PRS-40 Chronograph
Diameter
40mm
40.2mm
Lug-to-Lug
47mm
lowest
53.5mm
Thickness
11mm
lowest
12.3mm
Water Resistance
100m
100m
MSRP
$165
n/a
Movement
Quartz
Seiko VK61
Case
5 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 praise the Smiths PRS-40 CHRONOGRAPH's bead-blasted finish, noting it shows light marks from use but no deep scratches, and appreciate its sapphire crystal. Some find it wears thinner than automatic variants, while others note it wears large. The watch is described as having unique, "badass" looks, with one owner calling it "ugly" but appreciating its "bombproof nature" for harsh environments and its 12 o'clock crown. The purchase process is noted as tricky due to limited availability. On balance, owners rate the Smiths PRS-40 CHRONOGRAPH highly for its robust, utilitarian design and bead-blasted finish, making it a compelling tool watch.
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