Addiesdive Tuna 300M Automatic Dive Watch AD2509vsOrient FAA02008D9
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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.

Tuna 300M Automatic Dive Watch AD2509

FAA02008D9
Diameter
41mm
47mm
Lug-to-Lug
44.5mm
n/a
Thickness
15mm
n/a
Water Resistance
300m
highest
200m
MSRP
$139
lowest
$265
Movement
Seiko NH35
Automatic
Case
4 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
The Orient FAA02008D9 is praised for its hands and dial, with owners finding it a versatile everyday and business-casual watch. One owner notes its $175 price point, while another considers its $230 price high compared to alternatives. The Pepsi bezel design is praised for its accurate representation of decompression minutes. One owner expressed concern about its mineral crystal. The D9 variant is recommended for US buyers to ensure warranty support. Overall, owners rate the Orient FAA02008D9 highly for its versatile design and dial at the price.
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