Edox SkyDiver 70s Date AutomaticvsSeiko 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.

SkyDiver 70s Date Automatic

Prospex Sea 1968 Heritage Diver's GMT
Diameter
42mm
42mm
Lug-to-Lug
n/a
48.6mm
Thickness
11.5mm
lowest
12.9mm
Water Resistance
300m
highest
200m
Power Reserve
n/a
72h
MSRP
$1,480
lowest
$1,500
Movement
Caliber 80 (SW 200)
Seiko 6R54
Case
3 specsCrystal & Dial
2 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Edox SkyDiver 70s Date Automatic for its excellent fit and finish, comfortable wear on the bracelet, and strong lume. The watch is noted for its great accuracy and solid build, with reviewers highlighting the Calibre 80 automatic movement. One owner finds the 13.7mm case height unnecessarily thick, while another mentions the 38-hour power reserve. On balance, owners and reviewers rate the Edox SkyDiver 70s Date Automatic highly for its robust build and comfortable wear at its price point.
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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