Aerotec Watches Aerotec Ace X GMT DivervsSeiko Prospex Sea Save the Ocean Special Edition

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Aerotec Watches Aerotec Ace X GMT Diver at true scale

Aerotec Ace X GMT Diver

Seiko Prospex Sea Save the Ocean Special Edition at true scale

Prospex Sea Save the Ocean Special Edition

Diameter

41.5mm

42.4mm

Lug-to-Lug

n/a

49.4mm

Thickness

n/a

13.4mm

Water Resistance

200m

200m

Power Reserve

n/a

41h

MSRP

$459

lowest

$550

Movement

Seiko NH34

Seiko 4R36

Case

5 specs
Diameter
41.5mm
42.4mm
Thickness
n/a
13.4mm
Lug-to-Lug
n/a
49.4mm
Lug Width
n/a
20mm
Material
n/a
Stainless Steel

Crystal & Dial

3 specs
Crystal
n/a
Hardlex
Dial Color
Silver
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH34
Seiko 4R36
Power Reserve
0h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$459
$550
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Reviews

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

Aerotec Watches Aerotec Ace X GMT Diver

The Aerotec Ace X GMT Diver is praised for its excellent timekeeping from the Seiko NH34 movement, with one owner reporting immaculate condition after minimal wear. The watch features a 41.5mm case and 200m water resistance. Overall, owners rate the Aerotec Ace X GMT Diver highly for its reliable Seiko NH34 movement and solid build quality.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its attractive and unique dial designs, often described as featuring wave patterns, gradient blues, and even hidden elements, which reviewers and owners consider a standout feature for the price. Owners and reviewers consistently highlight the watch's good value and solid build quality. Some sources note that the bezel operation is smooth with a crisp feel, and the watch is generally considered comfortable to wear. Accuracy is reported as good, with one owner noting it runs about +5 seconds per day. However, several sources criticize the quality of the original bracelet and clasp, citing issues like pin-and-collar construction, stamped clasps, and a lack of a convenient diver's extension. Bezel alignment is also mentioned as a potential inconsistency by a few reviewers. Some owners find the full dots on the bezel to be busy, and a few prefer the dial designs without black bezels.

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