Side by side

Echo/Neutra 1956 3HvsSeiko Prospex Sea Save the Ocean Special Edition

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

1956 3H
Echo/Neutra1956 3H
MSRP $1,025

At a glance

16 of 29 specs differ
Diameter
1956 3H40mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
1956 3H41h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
1956 3H100m
Prospex Sea Save the Ocean Special Edition200m
MSRP
1956 3H$1,025
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

9 specs
Category
Diver
Diameter
40mm
45mm
Thickness
11.9mm
13.2mm
Lug-to-Lug
46mm
47.7mm
Lug Width
20mm
22mm
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
Flat
AR Coating
Underside
Anti-reflective coating on inner surface
Lume
Superluminova Old Radium
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW200-1 elaboré
4R36
Jewels
26
24
Complications
GMT, Moonphase, Date
None

Pricing

1 specs
MSRP
$1,025
$625

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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 Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its attractive, unique, and textured dials, often described as having a "Grand Seiko feel" at a more accessible price point, with specific mentions of wave patterns, lagoon hues, and manta ray motifs. Owners appreciate the smooth bezel operation and satisfactory lume. Accuracy figures vary, with one owner reporting +5 seconds per day, while another notes a range from +1/+2 to about -6 seconds per day. The 6R35 movement offers a 70-hour power reserve, and some models feature sapphire crystals. Criticisms include a desire for exhibition casebacks and concerns about the quality and security of the stamped metal clasps and bracelets, which are frequently described as rattly or underwhelming, though this is noted as a common Seiko trait. Some owners are split on the number of Save the Ocean variations and dislike the cyclops magnifier.

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