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Steeldive US Seller! 47.5mm STEELDIVE SD1975 TUNA NH35 Automatic 300M Diver

Brand: Steeldive

Don't risk customs duties (up to 11.2% per watch) or inspection fees (around $30.00 a parcel) from purchasing from an overseas seller. I know, this happened to me and are a very real possibility for you that can easily turn a $80.00 watch into a $115.00 watch or more.


SteelDive SD1975 – A Tribute to the Iconic Seiko Tuna Can Diver

Experience the perfect blend of heritage and modern craftsmanship with the SteelDive SD1975, a faithful tribute to the legendary Seiko "Tuna Can" Diver. Designed for both diving enthusiasts and collectors, this timepiece captures the rugged design, extreme durability, and functional excellence of one of the most famous dive watches ever made.


A Brief History of the Seiko Tuna Can

The Seiko Tuna was born in 1975 after a professional saturation diver wrote to Seiko, complaining that existing dive watches couldn’t handle extreme underwater conditions. Helium gas seeped into traditional dive watches, causing the crystal to pop off during decompression.

Seiko responded with a groundbreaking innovation: the 6159-7010, later nicknamed the "Tuna Can" due to its large, round, shrouded case. This watch was the first of its kind to feature:

Titanium Case – Corrosion-resistant and lightweight
Shrouded Design – Extra protection against impacts and pressure
Monocoque Case Construction – Eliminated the need for a helium escape valve
600m Water Resistance – A game-changer for professional divers

Seiko continued refining the Tuna over the decades, introducing quartz-powered models, 1000m water resistance, and even Spring Drive technology, solidifying its place as one of the most respected dive watches in history.


Why Choose the SteelDive SD1975?

The SteelDive SD1975 brings the iconic look and feel of the Seiko Tuna at a fraction of the price, while still delivering exceptional build quality and dive-ready performance.

Key Features:

Automatic NH35 Movement – Reliable Seiko-based caliber for precise timekeeping
300m Water Resistance – Built for serious diving and everyday wear
Screw-Down Crown & Caseback – Enhancing durability and water resistance
Shrouded Stainless Steel Case – Iconic design with extra protection
Sapphire Crystal – Scratch-resistant for long-lasting clarity
Super Luminous Dial & Hands – Maximum visibility in low-light conditions
Optional Silicone Strap – Comfortable and secure fit

This watch is perfect for those who admire the legendary Seiko Tuna but want an affordable alternative with modern upgrades. Whether you're an enthusiast, a diver, or a collector, the SteelDive SD1975 is a statement piece that delivers rugged durability and timeless style.


Condition & Purchase Details:

🛒 Brand New – Ships with original packaging
🚀 Fast & Secure Shipping
💳 Buy with Confidence – Trusted Seller

📢 Don’t miss your chance to own this modern tribute to a legendary dive watch!


Specifications (All Measurements are Approximate):

  • Reference Number: SD1975
  • Case Material: High Grade Stainless Steel
  • Case Back: Closed screw down w/Logo
  • Bezel: Yes - 120 Click Unidirectional
  • Bezel Insert: Ceramic
  • Crystal: AR Coated Sapphire
  • Movement: TMI NH35 - 21,600 beat rate (3Hz), hacking seconds, unidirectional winding, 24 jewel, 41 hours of power reserve.
  • Bracelet: 316L Stainless Steel
  • Clasp/Buckle: Double Fold over Deployant w/ Safety
  • Water resistance: 300m/30bar
  • Luminous: BGW9 Blue Luminous
  • Case Thickness: 15.5mm
  • Case Diameter: 47.5 mm (without crown)
  • Lug Size: 22 mm
  • Lug to Lug: 44.2 mm
  • Screw Down Crown?: Yes
  • Warranty: Manufactures
  • Accessories: Plastic Hard Case, Tag, Warranty Card, Instruction Manual, Bracelet Pin Pusher

Brand: Steeldive
Isin: IOHKURSKGG1V

$274.71

  • Free shipping in US
  • Arrives:

  • Free 30-Day returns

In Stock

Sold by , Fulfilled by IBSPOT
Ships from USA

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Steeldive US Seller! 47.5mm STEELDIVE SD1975 TUNA  NH35 Automatic 300M Diver

Steeldive US Seller! 47.5mm STEELDIVE SD1975 TUNA NH35 Automatic 300M Diver

$274.71

Don't risk customs duties (up to 11.2% per watch) or inspection fees (around $30.00 a parcel) from purchasing from an overseas seller. I know, this happened to me and are a very real possibility for you that can easily turn a $80.00 watch into a $115.00 watch or more.


SteelDive SD1975 – A Tribute to the Iconic Seiko Tuna Can Diver

Experience the perfect blend of heritage and modern craftsmanship with the SteelDive SD1975, a faithful tribute to the legendary Seiko "Tuna Can" Diver. Designed for both diving enthusiasts and collectors, this timepiece captures the rugged design, extreme durability, and functional excellence of one of the most famous dive watches ever made.


A Brief History of the Seiko Tuna Can

The Seiko Tuna was born in 1975 after a professional saturation diver wrote to Seiko, complaining that existing dive watches couldn’t handle extreme underwater conditions. Helium gas seeped into traditional dive watches, causing the crystal to pop off during decompression.

Seiko responded with a groundbreaking innovation: the 6159-7010, later nicknamed the "Tuna Can" due to its large, round, shrouded case. This watch was the first of its kind to feature:

Titanium Case – Corrosion-resistant and lightweight
Shrouded Design – Extra protection against impacts and pressure
Monocoque Case Construction – Eliminated the need for a helium escape valve
600m Water Resistance – A game-changer for professional divers

Seiko continued refining the Tuna over the decades, introducing quartz-powered models, 1000m water resistance, and even Spring Drive technology, solidifying its place as one of the most respected dive watches in history.


Why Choose the SteelDive SD1975?

The SteelDive SD1975 brings the iconic look and feel of the Seiko Tuna at a fraction of the price, while still delivering exceptional build quality and dive-ready performance.

Key Features:

Automatic NH35 Movement – Reliable Seiko-based caliber for precise timekeeping
300m Water Resistance – Built for serious diving and everyday wear
Screw-Down Crown & Caseback – Enhancing durability and water resistance
Shrouded Stainless Steel Case – Iconic design with extra protection
Sapphire Crystal – Scratch-resistant for long-lasting clarity
Super Luminous Dial & Hands – Maximum visibility in low-light conditions
Optional Silicone Strap – Comfortable and secure fit

This watch is perfect for those who admire the legendary Seiko Tuna but want an affordable alternative with modern upgrades. Whether you're an enthusiast, a diver, or a collector, the SteelDive SD1975 is a statement piece that delivers rugged durability and timeless style.


Condition & Purchase Details:

🛒 Brand New – Ships with original packaging
🚀 Fast & Secure Shipping
💳 Buy with Confidence – Trusted Seller

📢 Don’t miss your chance to own this modern tribute to a legendary dive watch!


Specifications (All Measurements are Approximate):

  • Reference Number: SD1975
  • Case Material: High Grade Stainless Steel
  • Case Back: Closed screw down w/Logo
  • Bezel: Yes - 120 Click Unidirectional
  • Bezel Insert: Ceramic
  • Crystal: AR Coated Sapphire
  • Movement: TMI NH35 - 21,600 beat rate (3Hz), hacking seconds, unidirectional winding, 24 jewel, 41 hours of power reserve.
  • Bracelet: 316L Stainless Steel
  • Clasp/Buckle: Double Fold over Deployant w/ Safety
  • Water resistance: 300m/30bar
  • Luminous: BGW9 Blue Luminous
  • Case Thickness: 15.5mm
  • Case Diameter: 47.5 mm (without crown)
  • Lug Size: 22 mm
  • Lug to Lug: 44.2 mm
  • Screw Down Crown?: Yes
  • Warranty: Manufactures
  • Accessories: Plastic Hard Case, Tag, Warranty Card, Instruction Manual, Bracelet Pin Pusher

Condition

New with box and papers: This item is brand new and has never been worn. It still has the original ...

Bezel Color

Black

Band Colour

Black

Number of Jewels

24 Jewels

Dial Pattern

Logo

Indices

Round Indexes

Dial Colour

Black

Year Manufactured

2010-Now

Band/Strap

Bracelet

Vintage

No

Case Color

Silver

Department

Men

Caseback

Screwback

Case Colour

Silver

Bezel Type

Unidirectional Rotating

Lug Width

20 mm

Watch Shape

Round

Style

Casual, Classic, Diver, Dress/Formal, Luxury, Pilot/Aviator, Sport

Features

12-Hour Dial, Date Indicator, Luminous Dial, Luminous Hands, Luminous Indexes, Magnetic-Resistant, Multifunction, Rotating Bezel, Sapphire Crystal, Scratch-Resistant, Screwdown Crown, Self-Winding, Shock-Resistant, Splash Proof, Water-Resistant

Case Size

47.5 mm

Case Material

Stainless Steel

Handmade

No

Water Resistance

300 m (30 ATM)

Movement

Mechanical (Automatic)

Seller Warranty

No

With Papers

Yes

Reference Number

SD1975

With Service Records

No

Brand

Steeldive

Type

Wristwatch

Band Color

Silver

Customized

No

Band Material

Stainless Steel

Dial Color

Black

Model

SD1975

Band Width

20 mm

With Original Box/Packaging

Yes

Theme

Celebrity

Case Finish

Polished

With Manual/Booklet

No

Country/Region of Manufacture

China

Display

Analog

UPC

n/a

 

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We currently ship to addresses within the United States only.

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Each product page clearly displays the “Ships From” location before checkout.


Shipping Methods & Estimated Delivery

 

Shipping Method Estimated Delivery Cost
Free Shipping (US) 5–10 business days Free, available on eligible items
Standard Shipping (US to US by Item) 5–10 business days $6.50 for the first item, $2.00 each additional
Standard Shipping (From US Warehouse by Weight) 3–7 business days Starts at $6.50, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb.
Extended Delivery (Ships from Overseas Warehouse) 10–20 business days $14.50 for the first item, $2.00 each additional

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You can track your shipment anytime using the Track Your Order page on our website.


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Contact: support@ibspot.com


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  3. If the issue remains unresolved, contact support@ibspot.com for assistance.

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If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.


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For any questions about shipping, tracking, or delivery, our customer support team is here to help.

Email: support@ibspot.com

We’re always happy to help.

Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.


Order Cancellation Policy

Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.

How to Request a Cancellation

You can contact us through:

Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.


Return Policy

We accept returns for most items within 30 days of delivery for a full refund.

To be eligible for a return:

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  • A tracking number must be provided to confirm the return shipment.

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Partial Refunds (If Applicable)

Partial refunds may be granted in specific situations, such as:

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  • Opened CDs, DVDs, software, or vinyl records
  • Items not in their original condition, damaged, or missing parts not due to our error
  • Items returned more than 30 days after delivery

How to Return an Item

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Our team will provide you with return instructions and a prepaid return label.


Shipping Cost for Returns

Please contact us before returning any item.
We will provide a free return shipping label.

If a return is sent back without prior contact or without our provided label, we cannot be held responsible for return shipping costs.

For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.


Refund Processing

Once your return is received and inspected:

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Please allow:

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  • An additional 3–10 business days for your bank to post the refund to your account.

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If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.


Exchanges

We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.


Return Address

IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States


Customer Support

Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.

Email: support@ibspot.com
Contact Form: Contact Us page

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