BOLDR Supply Co. Field Medic IVvsHamilton American Classic Intra-Matic Auto 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.

Field Medic IV

American Classic Intra-Matic Auto Chrono
Diameter
38mm
40mm
Lug-to-Lug
44mm
n/a
Thickness
12.2mm
lowest
14.4mm
Water Resistance
200m
highest
100m
Power Reserve
n/a
60h
MSRP
$299
lowest
$2,645
Movement
Seiko VK64
Hamilton H-31
Case
5 specsCrystal & Dial
1 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 Hamilton American Classic Intra-Matic Auto Chrono for its attractive panda dial, retro design, and value, with many noting its historical significance and ability to garner compliments. Reviewers and owners alike highlight its clean, athletic aesthetic and vintage charm, with some finding it wears well and fits comfortably under dress shirts, even on smaller wrists. However, multiple sources flag its substantial thickness, ranging from 14.35mm to 14.7mm, and one owner noted the H-31 movement's rotor felt unusually spinny and the date-set button recessed. Accuracy figures vary, with one owner reporting +8 seconds per day and another +3 seconds per day. The included leather strap is frequently described as showing creasing easily or being merely utilitarian, leading some owners to explore aftermarket bracelet options.
The panda dial's contrasting subdials are a notable strength. The bracelet clasp is considered less refined than the rest of the watch.
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