Manufaktur Waldhoff Atlas GMTvsSeiko Prospex Sea 1968 Heritage Diver's GMT
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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.

Atlas GMT

Prospex Sea 1968 Heritage Diver's GMT
Diameter
41mm
42mm
Lug-to-Lug
n/a
48.6mm
Thickness
13.5mm
13.3mm
lowest
Water Resistance
300m
300m
Power Reserve
41h
72h
highest
MSRP
$548
lowest
$1,700
Movement
Seiko NH34
Seiko 6R54
Case
3 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners praise the Manufaktur Waldhoff Atlas GMT for its quality and "spec monster" features for an office GMT diver. However, one owner found the 41mm case too large for their wrist, leading them to sell it in favor of smaller case sizes. The watch utilizes a Seiko NH34 automatic movement and offers 300m water resistance. Overall, owners appreciate the Manufaktur Waldhoff Atlas GMT for its impressive specifications and build quality at its price point, though case size can be a personal fit consideration.
The watch features excellent dial legibility due to high-quality Swiss luminous material. The Seiko NH34 GMT movement powers the watch.
Owners and reviewers widely praise the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch for its excellent value, Marinemaster-style build, and comfortable 42mm steel case with a 4:00 crown position. The watch features a refined clasp with an impressive 15mm of micro-adjustment and a caller-style GMT complication. While the 6R54 movement's stated accuracy is +25 to -15 seconds per day, real-world performance is often found to be better. The watch is priced at $1,700 USD. Overall, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch highly for its attractive design and robust build quality at its price point.
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