Casio EFB-730DvsBoldr Rally
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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

Rally
Diameter
40mm
38mm
Lug-to-Lug
47mm
44mm
lowest
Thickness
11mm
lowest
12.2mm
Water Resistance
100m
200m
highest
MSRP
$165
lowest
$299
Movement
Quartz
Seiko VK64
Case
7 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 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 Boldr Rally's 38mm titanium case and robust construction, with one owner noting its "bulletproof" build and excellent lume after four years. The Seiko VK64 mecaquartz movement is also a highlight, with one user reporting uninterrupted performance for over three years. While some find the dial busy and difficult to read due to small font and dark hands on a dark subdial, others appreciate its complexity and the clean design with a regatta timer-inspired subdial. The fabric strap is noted as not holding up well to daily wear, and the bead-blasted titanium case can be a scratch magnet, with some finding the watch too light on a NATO strap. Overall, owners rate the Boldr Rally highly for its excellent value and compact, durable titanium case.
The 38mm titanium case with a 44mm lug-to-lug measurement provides a comfortable and compact fit. The 200m water resistance is noted as robust for a chronograph. The 14mm thickness was mentioned as potentially substantial for the watch's size.
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