Serket Watch Co Reef MarianavsThorn 40mm NH35A Diver Automatic 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.

Serket Watch Co Reef Mariana at true scale

Reef Mariana

Thorn 40mm NH35A Diver Automatic Watch at true scale

40mm NH35A Diver Automatic Watch

Diameter

40mm

40mm

Lug-to-Lug

47.5mm

lowest

47.8mm

Thickness

13.2mm

lowest

13.6mm

Water Resistance

200m

200m

MSRP

$449

$179

lowest

Movement

Seiko NH35

PT5000

Case

3 specs
Thickness
13.2mm
13.6mm
Lug-to-Lug
47.5mm
47.8mm
Material
Stainless Steel
316L stainless steel

Crystal & Dial

2 specs
Dial Color
Orange
n/a
Lume
BGW9
None

Movement

2 specs
Caliber
Seiko NH35
PT5000
Power Reserve
n/a
0h

Pricing

1 specs
MSRP
$449
$179
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Reviews

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

Serket Watch Co Reef Mariana

Owners widely praise the Serket Watch Co Reef Mariana for its excellent value, citing the sapphire crystal, ceramic bezel, and reliable Seiko NH35 automatic movement at its price point. Some owners note the bezel turns too easily and suggest the lume could be stronger. Overall, owners rate the Serket Watch Co Reef Mariana highly for its eye-catching dial and bezel combination and strong feature set for the price.

Thorn 40mm NH35A Diver Automatic Watch

Owners widely praise the Thorn 40mm NH35A Diver Automatic Watch for its impressive case finishing, featuring sharp polished chamfers and nice brushing, along with great lume and excellent wrist presence due to its 40mm case and ideal lug-to-lug measurement. The vintage aesthetic with yellowish hands and old-fashioned dial details is also a highlight, as is the explorer dial. The watch is considered well-made and offered at a great price, with the NH35 movement and 120-click bezel being impressive features. However, some owners note that the dial text on certain models does not match the logo style, and one owner reported the water resistance as 30M splash proof, not 300M. Some owners also report the watch as incredibly fragile. On balance, owners rate the Thorn 40mm NH35A Diver Automatic Watch highly for its finishing, vintage aesthetic, and value at the price point.