DIFICIANO MarlinvsSeiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition
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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.

Marlin

Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition
Diameter
40mm
40.5mm
Lug-to-Lug
50mm
47.6mm
lowest
Thickness
13.9mm
13.2mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
n/a
70h
MSRP
$399
lowest
$1,250
Movement
Seiko NH35
Seiko 6R35
Case
4 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 DIFICIANO Marlin's green dial and attractive domed crystal, noting its seamless case finishing and overall value. Some find the automatic movement decent for the price, though one owner mentions a loud rotor. The included leather strap is acceptable, but many prefer to replace it. Overall, owners rate the DIFICIANO Marlin highly for its aesthetic appeal and perceived value.
Owners widely praise the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition for its unique dial color and execution, with one owner noting the 44mm lug-to-lug is perfect for most wrists. The watch is considered a refined piece with a fun factor, featuring a dial inspired by Okinawa's ocean colors expected to have a bright sunburst effect. Accuracy figures for the 6R35 movement range, with one owner reporting -10/+10 seconds per day as "pretty amazing," while others note issues with the 6R movement's accuracy. Some owners find the price of 1500€ too high, suggesting a value closer to 900€. On balance, owners and reviewers rate the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition well for its dial execution and wearability, despite some debate over its price point.
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