Side by side

Spinnaker Challenger AutomaticvsTedoro Harmony 36mm Stainless Steel Seiko NH35A

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

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.

Tedoro Harmony 36mm Stainless Steel Seiko NH35A

The Tedoro Harmony 36mm Stainless Steel Seiko NH35A is built around the reliable Seiko NH35A automatic movement, with owners reporting accuracy around +/- 5 seconds per day. The 36mm case size is noted as being a custom build, incorporating parts from AliExpress and an Invicta Pro Diver, with specific mention of gold hour and minute hands. On balance, owners find the Tedoro Harmony 36mm Stainless Steel Seiko NH35A to be a satisfactory custom build, appreciating the reliability of the NH35A movement and the familiar styling.

At a glance

11 of 29 specs differ
Diameter
Challenger Automatic42mm
Harmony 36mm Stainless Steel Seiko NH35A36mm
Power Reserve
Challenger Automatic40h
Harmony 36mm Stainless Steel Seiko NH35A41h
Water Resistance
Challenger Automatic200m
Harmony 36mm Stainless Steel Seiko NH35A100m
MSRP
Challenger Automatic$289
Harmony 36mm Stainless Steel Seiko NH35A$495

Full specifications

Case

7 specs
Category
Diver
Diameter
42mm
36mm
Thickness
19mm
Lug-to-Lug
49.5mm
Lug Width
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

1 specs
Dial Color
Blue
Burgundy

Movement

2 specs
Caliber
NH35
Seiko NH35
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$289
$495
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