BOLDR Supply Co. Field Medic IVvsCasio EFB-730D
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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.

Field Medic IV

EFB-730D
Diameter
38mm
40mm
Lug-to-Lug
44mm
lowest
47mm
Thickness
12.2mm
11mm
lowest
Water Resistance
200m
highest
100m
MSRP
$299
$165
lowest
Movement
Seiko VK64
Quartz
Case
7 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 BOLDR Supply Co. Field Medic IV for its lightweight, comfortable wearability, with many finding it an appealing daily driver due to its subtle camp and appearance. The 38mm case is noted as compact, and the pulsometer function is considered fun to use, even if not always practical. Some owners appreciate the lack of a ticking second hand, and the lume is described as "extremely cool" despite its short duration. However, the small sub-dials can be difficult to read, and the bead-blasted titanium case is flagged as a scratch magnet. One owner advises against the brand due to past issues with other models. On balance, owners rate the BOLDR Supply Co. Field Medic IV highly for its comfortable, lightweight wearability and unique pulsometer function.
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.
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