Cronos PT5000 Sub Diver Watch L6005vsSeiko 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.

PT5000 Sub Diver Watch L6005

Prospex Sea 1965 Heritage Diver's Watch
Diameter
40mm
40mm
Lug-to-Lug
n/a
46.4mm
Thickness
13.5mm
13mm
lowest
Water Resistance
200m
300m
highest
Power Reserve
n/a
72h
MSRP
$239
lowest
$1,300
Movement
PT5000
Seiko 6R55
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 Cronos PT5000 Sub Diver Watch L6005 for its excellent value, with many citing the PT5000 movement's reliable performance and buttery winding action as key strengths. The 40mm case is noted for comfortable wearability, and the watch is considered a strong homage. Accuracy figures for the PT5000 movement vary among owners, ranging from +2 seconds per day to +15 seconds per day, with one owner reporting 45 seconds per day. One owner noted a case protrusion issue at the 2 and 4 o'clock positions on a blue L6005 with a date function, and another experienced recurring crown issues but received excellent warranty service. Overall, owners rate the Cronos PT5000 Sub Diver Watch L6005 highly for its exceptional value and enjoyable user experience, particularly the winding feel.
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.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.









