Cronos PT5000 Sub Diver Watch L6005vsSeiko Prospex Sea 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.

Cronos PT5000 Sub Diver Watch L6005 at true scale

PT5000 Sub Diver Watch L6005

Seiko Prospex Sea 1965 Heritage Diver's Watch at true scale

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 specs
Thickness
13.5mm
13mm
Lug-to-Lug
n/a
46.4mm
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
PT5000
Seiko 6R55
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$239
$1,300
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Cronos PT5000 Sub Diver Watch L6005

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.

Seiko Prospex Sea 1965 Heritage Diver's Watch

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.

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