Side by side

Echo/Neutra 1956 3HvsSeiko Prospex Sea

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.

Echo/Neutra 1956 3H

Owners widely praise the Echo/Neutra 1956 3H for its exceptionally well-executed bracelet, with one owner comparing it favorably to Rolex Oyster bracelets and noting the gray dial exceeded build quality expectations. The watch features a dramatic box-domed sapphire crystal and a unique blend of vintage tool-watch and mid-century design elements. However, reviewers flag legibility challenges in low light due to its fixed, lumed bezel and non-lumed dial, and some may find the branding polarizing. Overall, owners rate the Echo/Neutra 1956 3H highly for its unique character and comfortable wearability, particularly appreciating the bracelet's quality.

From video reviewers

The case finishing and vintage aesthetic are consistently praised. The 100m water resistance and Sellita SW200-1 movement are also noted strengths. Reviewers did not reach a consensus on any weaknesses.

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.

At a glance

19 of 29 specs differ
Diameter
1956 3H40mm
Prospex Sea41.7mm
Power Reserve
1956 3H41h
Prospex Sea41h
Water Resistance
1956 3H100m
Prospex Sea200m
MSRP
1956 3H$1,025
Prospex Sea$595

Full specifications

Case

9 specs
Category
Diver
Diameter
40mm
41.7mm
Thickness
11.9mm
12.3mm
Lug-to-Lug
46mm
49.5mm
Lug Width
0mm
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
Water Resistance
100m
200m
Caseback
Solid screw-down

Crystal & Dial

5 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Ultra-domed
AR Coating
Underside
Dial Color
Black
Lume
Superluminova Old Radium
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Sellita SW200-1 elaboré
4R35
Beat Rate
28,800 vph
0 vph
Jewels
26
23
Complications
GMT, Moonphase, Date
None

Pricing

1 specs
MSRP
$1,025
$595
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