Phoibos Apollo TitaniumvsSeiko 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.

Apollo Titanium

Prospex Sea 1968 Heritage Diver's GMT
Diameter
41mm
42mm
Lug-to-Lug
48mm
lowest
48.6mm
Thickness
12.5mm
lowest
12.9mm
Water Resistance
300m
highest
200m
Power Reserve
n/a
72h
MSRP
$575
lowest
$1,500
Movement
Miyota 9015
Seiko 6R54
Case
6 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Phoibos Apollo Titanium is described as beautiful and unique by owners. Some owners note small marks appearing on the case, bracelet, bezel, and case back, though the watch is otherwise reported to be in very good condition. Overall, owners appreciate the Phoibos Apollo Titanium for its aesthetic appeal and unique design.
The full titanium build is a notable strength. The spring bar placement, initially an issue for strap changes, has been addressed by Phoibos.
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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