Side by side

Spinnaker Spence 300vsZelos Helica Moonphase

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

Spence 300
SpinnakerSpence 300
MSRP $650
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

8 of 29 specs differ
Diameter
Spence 30040mm
Helica Moonphase39mm
Power Reserve
Spence 30040h
Helica Moonphase40h
Water Resistance
Spence 300300m
Helica Moonphase100m
MSRP
Spence 300$650
Helica Moonphase$1,049

Full specifications

Case

5 specs
Category
Diver
Moonphase
Diameter
40mm
39mm
Thickness
11.5mm
10mm
Lug-to-Lug
48mm
39mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Aquamarine
Meteorite

Movement

1 specs
Caliber
SII NH35A
Sellita SW288 Moonphase

Pricing

1 specs
MSRP
$650
$1,049

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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 Moonphase

Owners widely praise the Zelos Helica Moonphase for its gorgeous aventurine dial, unique industrial-dress aesthetic, and comfortable wearability, with one owner calling it spectacular and another their favorite Zelos. The moonphase complication is frequently highlighted as beautiful, though some find the double moon distracting or the dial cluttered. A manual-wind movement combined with a screw-down crown is noted as a drawback by some, requiring adjustment and potentially feeling fragile when fully wound, while one owner reports a 43-hour power reserve. On balance, owners rate the Zelos Helica Moonphase highly for its stunning aventurine dial and unique design at its price point.

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