Side by side

Spinnaker Spence 300vsZelos Helica

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Spence 300
SpinnakerSpence 300
MSRP $650
Helica
ZelosHelica
MSRP $499

At a glance

7 of 29 specs differ
Diameter
Spence 30040mm
Helica39mm
Power Reserve
Spence 30040h
Helica40h
Water Resistance
Spence 300300m
Helica100m
MSRP
Spence 300$650
Helica$499

Full specifications

Case

4 specs
Diameter
40mm
39mm
Thickness
11.5mm
10.5mm
Lug-to-Lug
48mm
39mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Aquamarine
39 - Wave MOP

Movement

1 specs
Caliber
SII NH35A
Miyota 9015

Pricing

1 specs
MSRP
$650
$499

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What people say

Owners + reviewers, side by side

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

Spinnaker Spence 300

The Spinnaker Spence 300 is widely praised for its slim 10.9mm case and 40mm diameter, offering a comfortable and uncommon thin diver design at its price point. Reviewers and owners highlight its value, especially below $350, and its blend of retro design with modern specifications, including a 300m depth rating and a fully indexed bezel. Some owners, however, find the dial printing and bracelet finishing to be less refined, with one noting the bracelet's male end links as a drawback. The consensus is that the Spinnaker Spence 300 is highly regarded for its exceptional value and wearable dimensions, making it a strong contender for an everyday sports watch.

Zelos Helica

Owners widely praise the Zelos Helica for its stunning, often color-shifting dials, with specific mentions of the MoP, slate grey, 'Steel Blue', and red opal variants being particularly captivating and artful. The 39mm case size is noted as fitting well on smaller wrists, and the overall build quality and finishing for the price are frequently highlighted as impressive, with one owner calling it "a lot of watch for the price." Some owners appreciate the novel bracelet designs and full lume dials, while others find the bracelet and clasp edges sharp or the clasp lacking on-the-fly adjustment. Opinions on the date window are mixed, with one owner disliking it. The Zelos Helica Moonphase was considered cluttered by one owner, and its $1K USD price point was felt to be steep by another, though popular variants sold out rapidly. Overall, owners rate the Zelos Helica highly for its striking dial designs and impressive value proposition.

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