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.

Estoril 300 GMT

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 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
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.
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