Addiesdive · Factory brand · China

Addiesdive H7

Ref. H7 · In production · Diver

Design reference: Seiko Marinemaster 300

From $139
  • Seiko NH35A
  • 44 mm × 17 mm
  • Sapphire crystal
  • 300 m water resistance

Where to buy

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
44 mm
Lug to lug
—
Thickness
17 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
300 m
Crown
—
Case back
Solid
Bezel
60-minute dive, ceramic insert, lumed

Crystal & dial

Crystal
Sapphire
Shape
Double-domed
Anti-reflective
—
Lume
BGW9

Bracelet & clasp

Style
—
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
191 g
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
All—Street139 USD$1392026-10-21link

Variants

NameDialBezel
Blueblue sunburstblue ceramic
Greengreen sunburstgreen ceramic

About this entry

63% of key specs known. Missing: lug-to-lug, hardening, AR coating, crown, end links, link attachment, clasp micro-adjust.

Diver modelled on Seiko's Marinemaster 300, named in the store's title: round and rectangular applied lume plots, a double baton at 12, a date at 3, a ceramic bezel insert and "Automatic Professional Dive 300m" on the dial. The listing is titled "MY-H7", the store's earlier code style, while its spare "Steel Strap for H7" uses "H7", recorded as the model code. Brand specs (a short bullet list): "NH35A automatic mechanical movement, 41-hour power reserve", 316L stainless steel, "sapphire crystal curved on both sides" (recorded as double-domed; AR coating not mentioned), ceramic bezel, "Safety lock, rotatable chronograph bezel" (direction and clicks not stated), "BGW9 Bright blue luminous hands", 300m, "20mm lug width", "44mm case diameter", "17mm thickness" (whether with the crystal is not stated). Its "20mm total watch length" is an error (the dimension graphic shows 220mm). The dimension graphic draws the 44mm from the top to the bottom of the case, i.e. lug to lug, rather than across it; the text's 44mm diameter is recorded and lug-to-lug is left blank. The graphic also shows 20mm lugs, a 220mm length and 191g with the watch on its bracelet; the weight is from the graphic only. From the photos only: the 60-minute bezel scale and its lume (the lume photo shows the bezel numerals and scale glowing blue with the dial plots and hands), the solid caseback engraved "All stainless steel automatic movement NH35 Dive 300M by Addies" (how it is attached is not stated), the three-link bracelet and the fold-over clasp with a flip safety lock; crown type, end links, link attachment and micro-adjust are not stated. Some lifestyle photos show the watch on a black nylon strap, which the listing does not offer. Blue (SKU JGCPSKUH7-7, sold out on 2026-10-21) and Green (JGCPSKUH7-8, in stock), both $139 with no crossed-out price; a replacement steel bracelet is sold separately. No review was found.

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

Sources