Certina DS Super PH500MvsSeiko 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.

Certina DS Super PH500M at true scale

DS Super PH500M

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

Prospex Sea 1965 Heritage Diver's Watch

Diameter

43mm

40mm

Lug-to-Lug

48.2mm

46.4mm

lowest

Thickness

14.9mm

13mm

lowest

Water Resistance

500m

highest

300m

Power Reserve

80h

highest

72h

MSRP

$1,107

lowest

$1,300

Movement

POWERMATIC 80.611

Seiko 6R55

Case

4 specs
Diameter
43mm
40mm
Thickness
14.95mm
13mm
Lug-to-Lug
48.2mm
46.4mm
Water Resistance
500m
300m

Crystal & Dial

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

Movement

3 specs
Caliber
POWERMATIC 80.611
Seiko 6R55
Power Reserve
80h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$1,107
$1,300
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Reviews

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

Certina DS Super PH500M

Owners widely praise the Certina DS Super PH500M for its retro dive watch aesthetic, good legibility, and value, with many highlighting its striking orange dial and secure bezel lock. The Powermatic 80.611 movement is reported as consistent and accurate, with one owner noting +2/+3 seconds per day performance. The watch is considered tough and offers good specifications for its price. However, some find the 43mm case and 15mm thickness substantial, potentially wearing large on smaller wrists, and one reviewer notes the crystal retaining ring can be a scratch magnet. Overall, owners and reviewers rate the Certina DS Super PH500M highly for its vintage-inspired design and excellent value proposition.

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.