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
12.9mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
41h
72h
highest
MSRP
$548
lowest
$1,500
Movement
Seiko NH34
Seiko 6R54
Case
4 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.
The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and value, with owners noting its comfortable wearability and attractive aesthetic, particularly the silver/white sunray dial and blue ceramic bezel. The improved bracelet clasp with excellent micro-adjustment is a recurring positive point. Some owners report accuracy figures of +3 seconds per day or +/- 5 seconds per day, exceeding the movement's stated range. However, the GMT functionality is considered secondary to its dive watch capabilities by some, with the GMT scale being difficult to read and the caller-style GMT movement being a drawback for certain users. The dial contrast is also noted as lacking by some, and the crown at 4 o'clock is undesirable for a few. On balance, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT highly for its blend of dive watch character and GMT functionality, offering significant features for its price.
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