Nivada Grenchen Antarctic Diver AquamarvsThorn 37mm PT5000 Automatic Dive Watch T028

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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.

Nivada Grenchen Antarctic Diver Aquamar at true scale

Antarctic Diver Aquamar

Thorn 37mm PT5000 Automatic Dive Watch T028 at true scale

37mm PT5000 Automatic Dive Watch T028

Diameter

38mm

37mm

Lug-to-Lug

n/a

46.6mm

Thickness

12.9mm

lowest

13.2mm

Water Resistance

200m

200m

Power Reserve

38h

n/a

MSRP

$1,050

$199

lowest

Movement

Sellita SW200-1

PT5000

Case

5 specs
Diameter
38mm
37mm
Thickness
12.9mm
13.2mm
Lug-to-Lug
n/a
46.6mm
Lug Width
16mm
20mm
Caseback
Solid screw-down
n/a

Crystal & Dial

3 specs
AR Coating
Underside
n/a
Dial Color
Black
n/a
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Sellita SW200-1
PT5000
Beat Rate
4 vph
0 vph
Power Reserve
38h
0h
Complications
GMT
None

Pricing

1 specs
MSRP
$1,050
$199
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Reviews

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

Nivada Grenchen Antarctic Diver Aquamar

Owners widely praise the Nivada Grenchen Antarctic Diver Aquamar for its unique changeable lume feature, offering a choice of white or beige lume via a disc tied to the date mechanism. Reviewers and owners alike note its good value, with prices around $1,000, and a well-made, quality build that won't disappoint if the aesthetic appeals. Some owners report excellent timekeeping, while others mention decent timekeeping with a potential winding issue. Legibility on the grey dial may be a concern for some, and the hands' lume color is fixed. Overall, owners and reviewers rate the Nivada Grenchen Antarctic Diver Aquamar highly for its fun, well-packaged design and unique lume feature at a competitive price.

Thorn 37mm PT5000 Automatic Dive Watch T028

Owners widely praise the PT5000 movement for its smooth winding feel and excellent screw-down crown action, with one owner observing accuracy of +1 second per day and a beat error of 0.1ms. The Thorn 37mm PT5000 Automatic Dive Watch T028 is noted to have a thicker bezel and top hat crystal, contributing to a perceived top-heaviness and a case height of 13.4mm. On balance, owners value the smooth winding and accurate timekeeping of the Thorn 37mm PT5000 Automatic Dive Watch T028, despite some finding its proportions top-heavy.

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