Addiesdive Tuna 300M Automatic Dive Watch AD2509vsAigi Watches Arctic Diver Black Dive 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.

Addiesdive Tuna 300M Automatic Dive Watch AD2509 at true scale

Tuna 300M Automatic Dive Watch AD2509

Aigi Watches Arctic Diver Black Dive Watch at true scale

Arctic Diver Black Dive Watch

Diameter

41mm

41mm

Lug-to-Lug

44.5mm

lowest

46mm

Thickness

15mm

11.9mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

n/a

41h

MSRP

$139

lowest

$480

Movement

Seiko NH35

Seiko NH35

Case

4 specs
Thickness
15mm
11.95mm
Lug-to-Lug
44.5mm
46mm
Lug Width
22mm
n/a
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
n/a
black

Movement

1 specs
Power Reserve
0h
41h

Pricing

1 specs
MSRP
$139
$480
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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.

Aigi Watches Arctic Diver Black Dive Watch

Owners report the Aigi Arctic Diver Black Dive Watch offers decent specifications for its $199 price point. However, one owner noted weak lume and poor alignment of hands, indices, and bezel on their unit, though the brand facilitated a quick replacement. Another owner expressed uncertainty about the watch's quality due to a scarcity of online reviews. Some find the 41mm case, 49mm lug-to-lug, and 22mm lugs to be chunky. Overall, owners find the Aigi Arctic Diver Black Dive Watch to be a value proposition despite some quality control concerns and sizing considerations.

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