Synchron Poseidon Ice DivervsZelos Spearfish 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 Ice Diver at true scale

Poseidon Ice Diver

Zelos Spearfish 3 at true scale

Spearfish 3

Diameter

42mm

40mm

Lug-to-Lug

45mm

n/a

Thickness

12.5mm

11.5mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

68h

n/a

MSRP

n/a

$799

Movement

La Joux-Perret G100

La Joux-Perret G100

Case

6 specs
Diameter
42mm
40mm
Thickness
12.5mm
11.5mm
Lug-to-Lug
45mm
n/a
Lug Width
n/a
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
n/a
Diver - Forged Carbon

Movement

1 specs
Power Reserve
68h
0h

Pricing

1 specs
MSRP
n/a
$799
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Reviews

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

Synchron Poseidon Ice Diver

Owners widely praise the Synchron Poseidon Ice Diver for its value and wearability, with many noting its balanced feel and comfortable Isofrane strap, even on smaller wrists. The La Joux-Perret G100 automatic movement is consistently highlighted for its smooth winding and accuracy, with one owner reporting -4 seconds per day. The 120-click bezel action is well-regarded, and the watch is considered a good value at its price point. Overall, owners rate the Synchron Poseidon Ice Diver highly for its comfortable wearability and reliable Swiss movement at an accessible price.

Zelos Spearfish 3

Owners widely praise the Zelos Spearfish 3 for its exceptional finishing, with razor-sharp transitions and polish that exceed expectations for its price point. The 40mm case is noted for its wearability, and the bracelet is considered superb, featuring a tool-less micro-adjustment clasp that is among the best from microbrands. Some owners also highlight the beautiful and unique dials as a significant draw. One owner found the titanium case too light, though later regretted selling it. The Zelos Spearfish 3 uses the La Joux-Perret G100 automatic movement. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and wearability at its price point.

From video reviewers

The La Joux Perret G100 movement is a significant strength. The bracelet's refinement is a weakness. Reviewers disagreed on the dial material, with one noting a burnt orange sunburst and another mentioning meteorite.

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