Certina DS SUPER PH1000MvsSeiko Prospex Sea 1968 Heritage Diver's GMT

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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 PH1000M at true scale

DS SUPER PH1000M

Seiko Prospex Sea 1968 Heritage Diver's GMT at true scale

Prospex Sea 1968 Heritage Diver's GMT

Diameter

43.5mm

42mm

Lug-to-Lug

48.0mm

lowest

48.6mm

Thickness

14.2mm

12.9mm

lowest

Water Resistance

1000m

highest

200m

Power Reserve

80h

highest

72h

MSRP

$1,131

lowest

$1,500

Movement

POWERMATIC 80.611

Seiko 6R54

Case

4 specs
Diameter
43.5mm
42mm
Thickness
14.15mm
12.9mm
Lug-to-Lug
47.98mm
48.6mm
Water Resistance
1000m
200m

Crystal & Dial

2 specs
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 6R54
Power Reserve
80h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$1,131
$1,500
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Reviews

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

Certina DS SUPER PH1000M

The Certina DS SUPER PH1000M is widely praised for its retro-inspired design and comfortable wearability, with its 43.5mm case and tonneau shape contributing to a mid-size wearing experience. Owners and reviewers highlight its superb legibility, excellent construction, and refined FKM rubber strap. The watch is powered by the Powermatic 80.611 automatic movement, offering an 80-hour power reserve and keeping excellent time, with some owners reporting accuracy of 2-3 seconds per day. The orange dial variant is specifically noted for its striking color, though one owner observed it appearing more yellow than orange. The DS SUPER PH1000M is considered an impressive diver offering great value, even at its near $1k price point. Overall, owners and reviewers rate the Certina DS SUPER PH1000M highly for its comfortable retro design and excellent performance for the price.

Seiko Prospex Sea 1968 Heritage Diver's GMT

The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and value, with owners noting its comfortable wearability and attractive aesthetic, particularly the silver/white sunray dial and blue ceramic bezel. The improved bracelet clasp with excellent micro-adjustment is a recurring positive point. Some owners report accuracy figures of +3 seconds per day or +/- 5 seconds per day, exceeding the movement's stated range. However, the GMT functionality is considered secondary to its dive watch capabilities by some, with the GMT scale being difficult to read and the caller-style GMT movement being a drawback for certain users. The dial contrast is also noted as lacking by some, and the crown at 4 o'clock is undesirable for a few. On balance, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT highly for its blend of dive watch character and GMT functionality, offering significant features for its price.

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