Glycine Unisex Combat Sub Bronze 39mm Automatic Watch GL0517vsSquale 1521

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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.

Unisex Combat Sub Bronze 39mm Automatic Watch GL0517

1521
Diameter
39mm
42mm
Thickness
11.2mm
lowest
12.5mm
Water Resistance
300m
500m
highest
Power Reserve
n/a
38h
MSRP
$615
lowest
$1,265
Movement
Sellita SW200-1
Sellita SW200-1
Case
4 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Glycine Unisex Combat Sub Bronze 39mm Automatic Watch GL0517 for its value and quality, with some calling it superior in finishing, thinness, and movement feel compared to other automatic dive watches under $400. The watch is noted for its unique bronze aesthetic and is considered a compelling alternative to more expensive divers, with one owner finding it "very beauty" and in excellent condition for the price. However, some owners report issues with dial alignment, and dissatisfaction with the original strap or bracelet clasp is a recurring point. Concerns about bronze rot from seawater exposure and strap pairing difficulties are also mentioned by one owner. Overall, owners rate the Glycine Unisex Combat Sub Bronze 39mm Automatic Watch GL0517 highly for its aesthetic appeal and perceived quality at its price point.
Owners widely praise the Squale 1521 for its classic look and robust build, with specific mentions of its wearable 12.5mm thickness and refined case finishing. The 42mm case is noted by some to wear smaller, closer to 40mm, due to short lugs, feeling solid without being too large. However, opinions on the bracelet vary, with some finding it too flashy or stiff, and one owner reported moisture ingress after a shower due to a loose case back. The crown can be difficult to operate due to deep integration, and the 38-hour power reserve is considered old-school but reliable. Overall, owners rate the Squale 1521 highly for its classic design and wearability, despite some reservations about the bracelet and crown.
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