Filippo Loreti Watches Neptune AutomaticvsSeiko Prospex Sea 1965 Heritage Diver's Watch
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Neptune Automatic

Prospex Sea 1965 Heritage Diver's Watch
Diameter
43mm
40mm
Lug-to-Lug
n/a
46.4mm
Thickness
12.5mm
lowest
13mm
Water Resistance
200m
300m
highest
Power Reserve
41h
72h
highest
MSRP
$445
lowest
$1,300
Movement
Seiko NH36
Seiko 6R55
Case
5 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 report the Filippo Loreti Neptune Automatic feels light and empty for its price, with one owner noting it sets forward about a minute weekly. Some owners suggest better value and quality can be found in microbrands, with one owner stating the watch is Chinese and worth under $100. Concerns are raised about the brand's marketing, lack of heritage, and reports of poor customer service. On balance, owners find the Filippo Loreti Neptune Automatic to be a beautiful watch but question its value proposition and perceived quality.
Owners widely praise the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined engineering, comfortable 40mm case, and improved 300m water resistance. The watch is noted for its better build quality and finishing compared to some alternatives, featuring a mix of polished and brushed surfaces, with specific callouts for the jewel-toned teal dial with a rippling-water pattern. Some owners consider the price fair, while others suggest it is too high. Accuracy figures vary, with some owners reporting their 6R55 movement performs well within +/- 10 seconds per day, while others note theirs runs slow or have concerns about QC for the price. The bracelet, while improved, lacks modern features like quick-release or extensive micro-adjustments. Overall, owners and reviewers rate the Seiko Prospex Sea 1965 Heritage Diver's Watch highly for its refined design and build quality at its price point.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.








