Aerotec Watches Aerotec Ace X GMT DivervsDamasko DK20
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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 Ace X GMT Diver

DK20
Diameter
41.5mm
39mm
Water Resistance
200m
200m
MSRP
$459
n/a
Movement
Seiko NH34
Sellita SW200-1
Case
2 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
Owners widely praise the Damasko DK20 as a robust, legible three-hander that ticks nearly every box for a perfect watch, with many appreciating its size and the bead-blasted steel case's resistance to scratches. One owner notes the "Old Radium" hands appear modern orange and swapped the strap immediately, while another found micro-scratches on the bracelet and removed the AR coating. Some owners prefer the DK20's thicker indices and less prominent minute track over alternatives and highlight the importance of acquiring a bracelet. Overall, owners rate the Damasko DK20 highly for its robust build and wearability, with many finding it a satisfying return to the brand.
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