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.

1956 3H
Echo/Neutra1956 3H
MSRP $1,025
Prospex Sea
SeikoProspex Sea
MSRP $900

At a glance

16 of 29 specs differ
Diameter
1956 3H40mm
Prospex Sea41mm
Power Reserve
1956 3H41h
Prospex Sea70h
Water Resistance
1956 3H100m
Prospex Sea200m
MSRP
1956 3H$1,025
Prospex Sea$900

Full specifications

Case

8 specs
Category
Diver
Diameter
40mm
41mm
Thickness
11.9mm
12.3mm
Lug-to-Lug
46mm
46.9mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Water Resistance
100m
200m
Caseback
Solid screw-down
Solid

Crystal & Dial

3 specs
Crystal Shape
Ultra-domed
Curved
AR Coating
Underside
Anti-reflective coating on inner surface
Lume
Superluminova Old Radium
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Sellita SW200-1 elaboré
6R35
Power Reserve
41h
70h
Jewels
26
24
Complications
GMT, Moonphase, Date
None

Pricing

1 specs
MSRP
$1,025
$900

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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.

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.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

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