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41 mm
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Aquacy

Aquacy Hei Matau Oceanum Men's Automatic 200M Silver Dial Dive Watch ON.SL.BK.RD.MH

Diver

$684.99In stock

Last checked Oct 26, 2026

View on Aquacy’s site ↗

From Aquacy

Experience the Aquacy Oceanum with its sleek Silver Dial, Black & Red bi-color Bezel, and Mesh Bracelet! IN STOCK About the product Specifications Retail $749.00 Brand Aquacy Series Oceanum Model ON.SL.BK.RD.MH Gender Men's Condition New Specifications Case Material 316L Stainless Steel Case Size 41 mm Case Finish Brushed, Polished Sides Case Thickness 13.6mm Bezel Dodecagon shaped Bezel. Black and Red Aluminum Bezel Insert. 120 click Uni-Directional Rotating Case Back Exhibition, Screw down with Aquacy logo on Rotor Crystal Nearly Scratchproof Synthetic Sapphire Crown Screw Down, Knurled, Signed with Aquacy Logo Dial Color Silver Dial Markers Applied Steel, Aquacy Hei Matau Logo As the 12-Marker with Full Lume, All Luminous with Japan Green Glow High Quality Luminous Other Features Grade A fit and Finish Hands Steel, Japan Green Glow Luminous Luminescence White During Day and Green Glow Japan High Quality Luminous on Hands and Hour markers Movement Japan Automatic Self Winding Movement Calibre SII NH35 with 24 Jewels, Manufactured by Seiko** Power Reserve 41 Hours Band Type Mesh Bracelet Band Material High Quality Stainless Steel Mesh Band Finish Polished Clasp Tang Buckle, 316L Brushed Stainless Steel with Aquacy Logo Band Width 20 mm Band Length Fits Up to 9.25 inches Water Resistance 200M Functions Hour, Minute, Second, Minute Scale, Date Features Stainless Steel, Automatic Additional info Additional Information New In Aquacy Box, Individually Serial Numbered Warranty 4 Year Warranty on The Movement, 2 Year Limited Warranty On The Rest Of The Watch Box Includes Watch, Aquacy Branded Genuine Leather 2 Watch Roll, Warranty Card, Hang Tag, Polishing Cloth and Bracelet Sizing Tool. We Did a Watch Roll So You Can Have Something You Can Actually Use Instead Of a Cardboard Box. **We are not affiliated with the Seiko Corporation. Seiko and SII trademarks are the exclusive property of the Seiko corporation. Our use of the words do not constitute infringement as this Aquacy timepiece contains a Seiko SII movement manufactured by Seiko and marked SII which was declared in 1990 by Seiko as an official acronym for the Seiko corporation in 1990. Our use of the aforementioned terms are covered by universally recognized "fair use " and "descriptive use" with regards to trademark law as it simply accurately describes the components of the product.

Specifications

Details and photos come from Aquacy’s website, last checked Oct 26, 2026. Specs were read automatically and may contain mistakes.

Case

Diameter
41 mm
Lug-to-lug
Not listed
Thickness
13.6 mm
Thickness incl. crystal
Not listed
Lug width
20 mm
Material
316L steel

Movement

Type
Automatic
Caliber
Seiko NH35
Power reserve
41 h
Functions
Not listed

Crystal and bezel

Crystal
Sapphire
Bezel
Not listed

Water resistance

Rated to
200 m

Dial and lume

Dial
silver
Lume
Not listed

Strap

Strap
mesh
Every spec Aquacy lists
Bezel
Dodecagon shaped Bezel. Black and Red Aluminum Bezel Insert. 120 click Uni-Directional Rotating
Brand
Aquacy
Clasp
Tang Buckle, 316L Brushed Stainless Steel with Aquacy Logo
Crown
Screw Down, Knurled, Signed with Aquacy Logo
Hands
Steel, Japan Green Glow Luminous
Model
ON.SL.BK.RD.MH
Gender
Men's
Retail
$749.00
Series
Oceanum
Crystal
Nearly Scratchproof Synthetic Sapphire
Features
Stainless Steel, Automatic
Movement
Japan Automatic Self Winding
Warranty
4 Year Warranty on The Movement, 2 Year Limited Warranty On The Rest Of The Watch
Band Type
Mesh Bracelet
Case Back
Exhibition, Screw down with Aquacy logo on Rotor
Case Size
41 mm
Condition
New
Functions
Hour, Minute, Second, Minute Scale, Date
Band Width
20 mm
Dial Color
Silver
Band Finish
Polished
Band Length
Fits Up to 9.25 inches
Case Finish
Brushed, Polished Sides
Box Includes
Watch, Aquacy Branded Genuine Leather 2 Watch Roll, Warranty Card, Hang Tag, Polishing Cloth and Bracelet Sizing Tool. We Did a Watch Roll So You Can Have Something You Can Actually Use Instead Of a Cardboard Box.
Dial Markers
Applied Steel, Aquacy Hei Matau Logo As the 12-Marker with Full Lume, All Luminous with Japan Green Glow High Quality Luminous
Luminescence
White During Day and Green Glow Japan High Quality Luminous on Hands and Hour markers
Band Material
High Quality Stainless Steel Mesh
Case Material
316L Stainless Steel
Power Reserve
41 Hours
Case Thickness
13.6mm
Other Features
Grade A fit and Finish
Continental usa
Free
Movement Calibre
SII NH35 with 24 Jewels, Manufactured by Seiko**
Water Resistance
200M
Additional Information
New In Aquacy Box, Individually Serial Numbered

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