Side by side

Seiko Prospex SeavsTedoro Harmony 36mm Stainless Steel Seiko NH35A

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

Prospex Sea
SeikoProspex Sea
MSRP $595
What people say

Owners + reviewers, side by side

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

Seiko Prospex Sea

Owners and reviewers widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many noting its comfortable wearability and faithful design recreations. Some owners report the watch can feel big, thick, and heavy on smaller wrists, while others find the sizing perfect. The bezel action is frequently highlighted as smooth and precise, often exceeding that of less expensive models. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its impressive finishing and value proposition.

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

13 of 29 specs differ
Diameter
Prospex Sea41.7mm
Harmony 36mm Stainless Steel Seiko NH35A36mm
Power Reserve
Prospex Sea41h
Harmony 36mm Stainless Steel Seiko NH35A41h
Water Resistance
Prospex Sea200m
Harmony 36mm Stainless Steel Seiko NH35A100m
MSRP
Prospex Sea$595
Harmony 36mm Stainless Steel Seiko NH35A$495

Full specifications

Case

6 specs
Category
Diver
Diameter
41.7mm
36mm
Thickness
12.3mm
Lug-to-Lug
49.5mm
Lug Width
20mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Hardlex
Sapphire
Dial Color
Black
Burgundy
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
Seiko 4R35
NH35
Power Reserve
41h
41h
Jewels
23
25

Pricing

1 specs
MSRP
$595
$495
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