Addiesdive · Factory brand · China

Addiesdive AD2509

Ref. AD2509 · In production · Diver

Design reference: Seiko Tuna

Addiesdive AD2509 tuna-style diver with textured blue gradient dial, round indices and brushed steel bezel insert on a three-link bracelet
Photo: Addiesdive
  • Addiesdive AD2509 dimension graphic (41mm, 44.5mm, 15mm, 22mm, 220mm, 206.5g)
  • Addiesdive AD2509 case side showing the shroud held by hex screws
  • Addiesdive AD2509 close-up of the steel bezel insert and its lumed pip
  • Addiesdive AD2509 solid engraved caseback and fold-over clasp
  • Addiesdive AD2509 lume shot, hands, indices and bezel pip glowing blue
From $139 to $149
  • Seiko NH35A
  • 41 mm × 15 mm
  • Sapphire crystal
  • 300 m water resistance

Movement

Type
Automatic
Tier
Entry
Complications
Date
Frequency
21,600 bph
Power reserve
41 h
Hacking
Yes
Accuracy (factory)
-20 / +40 s/day

Case

Diameter
41 mm
Lug to lug
44.5 mm
Thickness
15 mm
Lug width
22 mm
Material
Steel (316L)
Hardening
—
Water resistance
300 m
Crown
Screw-down
Case back
Solid, screw-down
Bezel
Unidirectional, 120 clicks, 60-minute dive, steel insert, lumed

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
BGW9

Bracelet & clasp

Style
Oyster
Links per row
3
Solid end links
—
Solid links
—
Link attachment
—
Taper
—
Quick release
—
Half links
—
Clasp
Fold-over
Micro-adjust
—
Diver extension
—

Weight

Head only
—
On bracelet
206.5 g
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
All—Street139 USD$1392026-10-21link
AllIndia warehouse (ships within India)Street149 USD$1492026-10-21link

Variants

NameReferenceDialBezel
BlueAD2509-2blue gradient with a textured relief patternbrushed steel with engraved numerals

About this entry

79% of key specs known. Missing: hardening, end links, link attachment, clasp micro-adjust.

Shrouded diver that the store calls "Tuna" (and files in its "Tuna Can Collection"), after Seiko's Tuna, with a textured blue gradient dial, round applied indices and a brushed steel bezel insert with engraved numerals and a lumed pip in a black triangle. One colourway (SKU AD2509-2). Brand specs: "Japan NH35 automatic, 41 hours of energy storage", 316L case and caseback, "120 clicks unidirect rotational stainless steel bezel", sapphire crystal with AR coating (side not stated), "BGW9 blue super luminous for bezel and hands", 7mm screw-down crown, screwback case, 300m, "Case diameter: 41mm (without crown)", 44.5mm lug-to-lug, 15mm, 22mm lugs, "206.5g with steel strap", 220mm long. The dimension graphic agrees and draws the 41mm across the shroud. Whether the 15mm includes the crystal is not stated. From the product photos only: the screwed-on shroud, the 60-minute bezel scale, the lume on the indices as well as hands and bezel pip, the solid engraved caseback, the three-link bracelet and the fold-over clasp with safety lock; micro-adjust, end links and link attachment are not stated. A different version of the AD2090 and AD2098 tunas (see ad2090, ad2098): same NH35 and the same 41mm / 44.5mm / 15mm / 22mm / 300m figures, but with a steel bezel insert (aluminium on the AD2090, ceramic on the AD2098), its own dial and 206.5g (203g and 208.5g). Sold from China worldwide at $139 (no crossed-out price) and from an India warehouse listing that ships only within India at $149, recorded as a separate configuration; both in stock on 2026-10-21.

Last verified: 2026-10-21. Edit or correct this entry.

Sources