Side by side

Echo/Neutra Averau 39 Moon PhasevsSeiko Prospex Sea

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

Averau 39 Moon Phase
Echo/NeutraAverau 39 Moon Phase
MSRP $1,085
Prospex Sea
SeikoProspex Sea
MSRP $625

At a glance

16 of 29 specs differ
Diameter
Averau 39 Moon Phase39mm
Prospex Sea43.8mm
Power Reserve
Averau 39 Moon Phase38h
Prospex Sea41h
Water Resistance
Averau 39 Moon Phase100m
Prospex Sea200m
MSRP
Averau 39 Moon Phase$1,085
Prospex Sea$625

Full specifications

Case

8 specs
Category
Diver
Diameter
39mm
43.8mm
Thickness
12.5mm
12.8mm
Lug-to-Lug
46mm
48.7mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal Shape
Domed
Flat
AR Coating
Underside
Anti-reflective coating on inner surface
Lume
Superluminova BGW9
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Sellita SW280-1 elaboré
4R35
Power Reserve
38h
41h
Jewels
25
23
Complications
Moon Phase
None

Pricing

1 specs
MSRP
$1,085
$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 Averau 39 Moon Phase

Owners widely praise the Echo/Neutra Averau 39 Moon Phase for its clear dial, excellent lume, and the unique, readable moon phase complication, with many finding the 39mm size perfect for a field watch and appreciating the overall finishing and bracelet quality. Some owners find setting the moon phase requires frequent adjustment and can be difficult to set accurately, while one owner noted the moon phase model is thicker than anticipated but still wears well. On balance, owners rate the Echo/Neutra Averau 39 Moon Phase highly for its distinctive design and strong value.

From video reviewers

The moon phase complication is a notable strength, integrating a high-end feature into a field watch design. Reviewers did not reach a consensus on any specific weaknesses.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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