Borealis Watch Co. Estoril 300 GMTvsCertina DS Super PH1000M

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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.

Borealis Watch Co. Estoril 300 GMT at true scale

Estoril 300 GMT

Certina DS Super PH1000M at true scale

DS Super PH1000M

Diameter

41.5mm

43.5mm

Lug-to-Lug

47mm

lowest

48.0mm

Thickness

13.5mm

lowest

14.2mm

Water Resistance

300m

1000m

highest

Power Reserve

n/a

80h

MSRP

$600

lowest

$1,131

Movement

Miyota 9075

POWERMATIC 80.611

Case

4 specs
Diameter
41.5mm
43.5mm
Thickness
13.5mm
14.15mm
Lug-to-Lug
47mm
47.98mm
Water Resistance
300m
1000m

Crystal & Dial

1 specs
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9075
POWERMATIC 80.611
Power Reserve
0h
80h

Pricing

1 specs
MSRP
$600
$1,131
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Reviews

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

Borealis Watch Co. Estoril 300 GMT

Owners widely praise the Borealis Watch Co. Estoril 300 GMT for its excellent value and robust build quality, featuring crisp dial details and exceptionally bright BGW9 lume. Some owners note the bezel insert's sapphire construction as an aesthetic departure from its inspiration, and one owner wishes for a white-painted second hand. The Borealis Watch Co. Estoril 300 GMT is described as dive-ready with a ceramic bezel and homage design. Overall, owners rate the Borealis Watch Co. Estoril 300 GMT highly for its impressive build quality and value at the price point.

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.