Synchron PoseidonvsZelos Swordfish 3

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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.

Synchron Poseidon at true scale

Poseidon

Zelos Swordfish 3 at true scale

Swordfish 3

Diameter

41mm

40mm

Lug-to-Lug

45mm

n/a

Thickness

11.9mm

lowest

12mm

Water Resistance

300m

highest

200m

Power Reserve

68h

n/a

MSRP

n/a

$399

Movement

La Joux-Perret G100

Seiko NH35

Case

5 specs
Diameter
41mm
40mm
Thickness
11.9mm
12mm
Lug-to-Lug
45mm
n/a
Material
Titanium
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Sunshine Yellow
Bronze

Movement

2 specs
Caliber
La Joux-Perret G100
Seiko NH35
Power Reserve
68h
0h

Pricing

1 specs
MSRP
n/a
$399
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Synchron Poseidon

Owners widely praise the Synchron Poseidon for its vintage-inspired diver aesthetics, easy-to-read dial, and precise, grippy bezel. The La Joux-Perret G100 movement is consistently noted as a strong point, with owners reporting good timekeeping, one seeing accuracy around -4 seconds per day, and others highlighting its 68-hour power reserve. The winding action and crown operation are described as reassuring, with one reviewer stating it surpasses watches at double the price. Some find the design busy or the branding confusing, and the blasted finish on the steel bezel rim contrasts with the brushed case. One owner noted the included Isofrane strap can be long for smaller wrists. On balance, owners and reviewers rate the Synchron Poseidon highly for its robust build, reliable movement, and excellent value.

Zelos Swordfish 3

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.