Side by side

Erebus Watches Ascent 40 GMTvsSeiko Prospex Sea Save the Ocean Special Edition

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

Ascent 40 GMT
Erebus WatchesAscent 40 GMT
MSRP $429
What people say

Owners + reviewers, side by side

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

Erebus Watches Ascent 40 GMT

Owners widely praise the Erebus Watches ASCENT for its stunning dial and excellent lume, with many finding it gorgeous and beautiful beyond comprehension. The watch is also noted for its comfortable wearability, attributed to its 40mm case, and the bracelet's micro-adjustable clasp and well-finished screws receive specific commendation. Some owners consider the Miyota 9075 movement excellent for the price, with one reporting accuracy of +1 second per day. However, import duties are a significant concern for some buyers, and the polished case sides are noted to lack a scratch-resistant coating. On balance, owners rate the Erebus Watches ASCENT highly for its aesthetic appeal and comfortable wearability at its price point.

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.

At a glance

13 of 29 specs differ
Diameter
Ascent 40 GMT40mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
Ascent 40 GMT
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Ascent 40 GMT100m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Ascent 40 GMT$429
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

6 specs
Category
Diver
Diameter
40mm
45mm
Thickness
12.4mm
13.2mm
Lug-to-Lug
46mm
47.7mm
Lug Width
20mm
22mm
Water Resistance
100m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Malachite
Black
Lume
BGW9 Super-LumiNova®
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9075
Seiko 4R36
Power Reserve
41h
Jewels
25
24

Pricing

1 specs
MSRP
$429
$625
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