Casio EFB-730DvsSternglas Hamburg Chrono
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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

Hamburg Chrono
Diameter
40mm
42mm
Lug-to-Lug
47mm
46mm
lowest
Thickness
11mm
9.3mm
lowest
Water Resistance
100m
highest
50m
MSRP
$165
lowest
$377
Movement
Quartz
Seiko VK64
Case
6 specsCrystal & Dial
2 specsMovement
3 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 Sternglas Hamburg Chrono for its excellent timekeeping and visually pleasing design, noting details like the orange date window frame and its comfortable, lightweight wear. Some find the design a bit busy for Bauhaus, and one commenter questions the VK64 movement's lack of a running second hand. One owner notes the significant price difference compared to manufacturing costs. Overall, owners rate the Sternglas Hamburg Chrono highly for its value and attractive design details.
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