Addiesdive Tuna 300M Automatic Dive Watch AD2509vsHanhart AQUASPHERE Ocean Fade, 42mm

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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.

Addiesdive Tuna 300M Automatic Dive Watch AD2509 at true scale

Tuna 300M Automatic Dive Watch AD2509

Hanhart AQUASPHERE Ocean Fade, 42mm at true scale

AQUASPHERE Ocean Fade, 42mm

Diameter

41mm

42mm

Lug-to-Lug

44.5mm

lowest

49mm

Thickness

15mm

12.9mm

lowest

Water Resistance

300m

300m

Power Reserve

n/a

38h

MSRP

$139

lowest

$2,481

Movement

Seiko NH35

Automatic

Case

4 specs
Diameter
41mm
42mm
Thickness
15mm
12.95mm
Lug-to-Lug
44.5mm
49mm
Lug Width
22mm
n/a

Movement

2 specs
Caliber
Seiko NH35
n/a
Power Reserve
0h
38h

Pricing

1 specs
MSRP
$139
$2,481
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Reviews

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

Addiesdive Tuna 300M Automatic Dive Watch AD2509

Owners widely praise the Addiesdive Tuna 300M Automatic Dive Watch AD2509 for its excellent value, with many finding the case finishing comparable to higher-priced brands and appreciating the sapphire crystal and strong lume. The Seiko NH35 movement is generally considered reliable and keeps good time, with some owners reporting accuracy within +1/+2 seconds per day, while others note figures around -6 seconds per day. The watch is seen as a competent homage, featuring a ceramic bezel insert and solid link bracelet. One owner noted the 39mm case size as easy to wear on a 7-inch wrist. However, some owners express skepticism regarding the actual water resistance beyond casual use, despite the 300m rating, and question the warranty's reliability. The bracelet is frequently described as significantly worse than that found on comparable brands, though still visually appealing. Quality control variance is a concern for some, with instances of misaligned bezel inserts reported.

Hanhart AQUASPHERE Ocean Fade, 42mm

Owners widely praise the Hanhart AQUASPHERE Ocean Fade, 42mm for its super clean, elegant design, perfect 42mm sizing, and versatile sporty-dressy aesthetic. Reviewers and owners alike highlight the attractive blue-to-black gradient dial and the unique, geometrically interesting case design with its distinctive lug shape. The watch offers 300m water resistance and is available with various strap or bracelet options. Some owners suggest the steel bracelet clasp could be improved, and one reviewer found the combination of brushing, polishing, and lume on the hands slightly too complex. The Soprod P024 automatic movement provides adjusted accuracy of 0/+8 seconds per day across six positions, though its 38-hour power reserve is noted as not cutting-edge. Overall, owners and reviewers rate the Hanhart AQUASPHERE Ocean Fade, 42mm highly for its elegant design and wearability at its price point.