Side by side

Spinnaker Bradner GMTvsZelos Helica Moonphase

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

9 of 29 specs differ
Diameter
Bradner GMT42mm
Helica Moonphase39mm
Power Reserve
Bradner GMT40h
Helica Moonphase40h
Water Resistance
Bradner GMT180m
Helica Moonphase100m
MSRP
Bradner GMT$299
Helica Moonphase$1,049

Full specifications

Case

6 specs
Category
GMT
Moonphase
Diameter
42mm
39mm
Thickness
15mm
10mm
Lug-to-Lug
50mm
39mm
Lug Width
22mm
20mm
Water Resistance
180m
100m

Crystal & Dial

1 specs
Dial Color
Brown
Meteorite

Movement

1 specs
Caliber
Seiko NH34A
Sellita SW288 Moonphase

Pricing

1 specs
MSRP
$299
$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 Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

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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