Phoibos Eagle Ray 200MvsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch
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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.

Eagle Ray 200M

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch
Diameter
40mm
39.5mm
Lug-to-Lug
46mm
lowest
47.2mm
Thickness
12mm
lowest
12.3mm
Water Resistance
200m
200m
Power Reserve
n/a
45h
MSRP
$480
lowest
$2,800
Movement
Miyota 9015
Seiko 6L37
Case
3 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Phoibos Eagle Ray Date's design and logo, with one owner noting its well-made appearance despite the low cost and another appreciating the symmetrical date window at 6 o'clock. The watch features a ceramic bezel and a slightly domed sapphire crystal. However, multiple owners report receiving non-functional watches and experiencing poor customer service when seeking refunds. On balance, owners rate the Phoibos Eagle Ray Date positively for its design and value, though significant concerns exist regarding initial functionality and customer support.
The Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch is praised for its modern execution of a classic design, with reviewers noting the appealing 39.5mm case size and updated bracelet that improve wearability. Some reviewers mention the 6L37 movement has a 46-hour power reserve, with accuracy rated around -10/+15 seconds per day. A drawback identified by reviewers is the lack of tool-free micro-adjustment on the clasp. Overall, owners and reviewers find the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch to be a handsome re-interpretation of a beloved design, with its improved wearability being a key strength.
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