Formex Reef 39.5 mmvsZelos Swordfish 3
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Reef 39.5 mm

Swordfish 3
Diameter
39.5mm
40mm
Lug-to-Lug
45.5mm
n/a
Thickness
11mm
lowest
12mm
Water Resistance
300m
highest
200m
Power Reserve
56h
n/a
MSRP
$2,230
$399
lowest
Movement
Sellita SW300-1
Seiko NH35
Case
6 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Formex Reef 39.5 mm is widely praised for its refined finishing, improved proportions, and compelling value under €2,000. Owners and reviewers highlight its comfortable wearability on smaller wrists, unique aesthetic, and impressive specifications including 300m water resistance and a COSC-certified Sellita SW300-1 movement. Some note the 22mm lug width feels slightly disproportionate and the bracelet could benefit from more taper. A prototype crown protrusion issue is expected to be resolved in production. Overall, owners rate the Formex Reef 39.5 mm highly for its excellent build quality and tool-like features at its price point.
Owners and reviewers widely praise the Zelos Swordfish 3 for its exceptional value, with many highlighting the textured sandwich dial and the surprisingly good bracelet. The watch's 40mm case dimensions are considered fine for wearability, and its titanium construction contributes to a compact and comfortable feel. Some owners appreciate the unique appeal of specific dials, such as the teal or yellow Timascus variants. One reviewer noted sharp bracelet edges and legibility issues in bright light on a specific variant. Overall, owners and reviewers rate the Zelos Swordfish 3 highly for its strong value proposition and fun design elements at its price point.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.









