Side by side

Spinnaker Challenger AutomaticvsZelos Helica Moonphase

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

Challenger Automatic
SpinnakerChallenger Automatic
MSRP $289
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

9 of 29 specs differ
Diameter
Challenger Automatic42mm
Helica Moonphase39mm
Power Reserve
Challenger Automatic40h
Helica Moonphase40h
Water Resistance
Challenger Automatic200m
Helica Moonphase100m
MSRP
Challenger Automatic$289
Helica Moonphase$1,049

Full specifications

Case

6 specs
Category
Diver
Moonphase
Diameter
42mm
39mm
Thickness
19mm
10mm
Lug-to-Lug
49.5mm
39mm
Lug Width
22mm
20mm
Water Resistance
200m
100m

Crystal & Dial

1 specs
Dial Color
Blue
Meteorite

Movement

1 specs
Caliber
SII NH35A
Sellita SW288 Moonphase

Pricing

1 specs
MSRP
$289
$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 Challenger Automatic

The Spinnaker Challenger Automatic is widely praised for its fun, playful design, solid build quality, and satisfying bezel action. Owners appreciate the comfortable 42mm DLC-coated case and the thoughtful integration of the Popeye theme, with the character serving as the hour and minute hands. Reviewers note the reliable Seiko NH35 movement and 300m water resistance. Some owners find the blue lume weaker than expected, and the ultra-domed sapphire crystal presents challenges for photography. The thick rubber strap is also cited as difficult to manage. Overall, owners and reviewers rate the Spinnaker Challenger Automatic highly for its unique character integration and solid dive watch fundamentals at its price point.

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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