Addiesdive Tuna 300M Automatic Dive Watch AD2509vsDuxot Henri Diver Automatic
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
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

Henri Diver Automatic
Diameter
41mm
41mm
Lug-to-Lug
44.5mm
lowest
47mm
Thickness
15mm
15mm
Water Resistance
300m
highest
200m
MSRP
$139
lowest
$310
Movement
Seiko NH35
Seiko NH35
Case
4 specsCrystal & Dial
1 specsMovement
2 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.
Owners widely praise the Duxot Henri Diver Automatic for its accuracy, good fit, and value. One owner wishes the lume lasted longer, while another found the bracelet trash and flimsy. A similar model was noted to gain 2-3 minutes per hour after two months. On balance, owners rate the Duxot Henri Diver Automatic highly for its value and accuracy, despite some concerns about bracelet quality and lume longevity.
The brass wave dial with applied Super Luminous indices delivers striking visual depth and reliable on-wrist legibility across all lighting conditions. The 41mm case with 47mm lug-to-lug proportions and Japanese automatic movement balance compact wearability with robust 20 ATM water resistance, though the 15mm thickness reads substantial for its diameter.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.












