What is the difference between the 210.30.42.20.01.001 and the 210.32.42.20.01.001?

Case, black ceramic dial, bezel and calibre 8800 are the same for both references. The 210.32.42.20.01.001 is worn on a rubber strap with a stainless steel pin buckle, the 210.30.42.20.01.001 on a stainless steel bracelet with folding clasp, comfort setting and diver extension.

What changed with the 2018 generation of the Diver 300M?

With the generation presented in 2018, the wave pattern returned to the dial, now laser-engraved in ceramic. The date moved from 3 o'clock to 6 o'clock, and the helium escape valve at 10 o'clock was given a conical shape. For the first time, the Diver 300M has a caseback with sapphire crystal.

What is the purpose of the helium escape valve on the Diver 300M?

The helium escape valve at 10 o'clock allows helium to escape from the case when the watch is worn in pressure chambers. This mainly concerns professional saturation diving.

What does the Master Chronometer certification of the Diver 300M 210.30.42.20.01.001 mean?

The calibre 8800 is certified as a Master Chronometer by the Swiss Federal Institute of Metrology (METAS). The tests cover the finished watch and its movement, including precision and resistance to magnetic fields of up to 15,000 gauss. The movement is visible through the sapphire crystal in the wave-edged caseback.

What are the technical specifications of the Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm?

Case diameter: 42 mm. Calibre: 8800. Power reserve: 55 hours. Water resistance: 300 m.

OMEGA Seamaster Diver 300M Co-Axial Master Chronometer 42mm 210.30.42.20.01.001

Name: Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm
Brand: Omega
SKU: 210.30.42.20.01.001
Price: 5330.0 EUR
Availability: InStock

Your Horando Premium Purchasing Advisor

As your personal purchasing advisor, I would be glad to support you free of charge in the search for your dream watch.

+49 170 3292-498

Contact Now

General Information
Purchasing & Consulting
Shipping & Returns

Who is Horando?

Horando is the online store for exclusive wristwatches. Thanks to a strong network of wholesalers and distributors both domestically and abroad, Horando can offer nearly any watch model at attractive prices within a few days. The focus is on the sale of new luxury wristwatches as well as matching accessories such as watch winders and watch stands. A selection of pre-owned watches rounds out the product lineup. Horando.de is operated by Horando Deutschland GmbH, headquartered in Hanover. The name is derived from the Latin word “Hora,” meaning “the hour.”
Are the watches you offer authentic?

All the watches we offer are guaranteed to be authentic and original. Horando sources new watches with an international manufacturer's warranty from authorized dealers around the world. Pre-owned watches are authenticated and certified by our watchmakers. You will receive a 1-year warranty from Horando on these watches.
What security measures does Horando provide for my online order?
Horando is a subsidiary of Horando Deutschland GmbH, headquartered in Hanover. As a company based in Germany, we aim to build long-term business relationships with our customers and, in addition to offering a selection of beautiful products, we are committed above all to ensuring that your purchases are processed securely and reliably. To that end, we provide the following security measures:
- SSL encryption / SSL-encrypted data transmission. Your personal information—such as your address, login details, and payment information—is encrypted using SSL (Secure Socket Layer), ensuring that no one else can read it. This applies in particular to the handling of personal data, which we never share with third parties.
- Trusted Shops Security Certificate
- Internationally secure payment methods (PayPal, credit card, installment purchases)
- Reputable partner network of authorized official retailers
- 100% authenticated & original watches
- 14-day right of withdrawal
You may cancel your contract within 14 days without providing a reason in writing (e.g., letter, fax, email) or—if the item is delivered to you before the 14-day period expires—by returning the item.
What kind of warranty does Horando offer me?

Depending on the product description, we offer a full manufacturer’s warranty on our watches. In a few rare cases, the warranty may already be in effect. In such cases, this will be noted separately in the product listings under “Warranty Start Date” in the product details. For pre-owned watches, you receive a 1-year warranty through Horando Deutschland GmbH.
Who should I contact if I need to make a warranty claim?

If there is a problem with a watch you purchased from us, we are always your first point of contact. Feel free to reach us at any time toll-free by phone at +49 (0) 951 / 99 33 010 or by email at service@horando.de.

Would you like a personal consultation?

Feel free to contact us at any time by phone toll-free at +49 (0) 951 / 99 33 010 or by email at service@horando.de. We’re happy to schedule a consultation or answer your questions Monday through Friday from 8:00 a.m. to 6:00 p.m.
What's included in the package?

As a general rule, all products offered by Horando are delivered complete with their original box or case, as well as all accompanying documents and certificates, and any additional accessories, if applicable. For used watches, the contents of the package are listed separately in the item description.
Why are some prices at HORANDO significantly lower than those at specialty retailers?

Thanks to our strong network of numerous wholesalers both domestically and abroad, we can offer nearly any watch model in a very short time at excellent terms. Since we are not bound by any direct manufacturer requirements regarding a retail store, store layout, or marketing, and since our inventory turns over very quickly, we have a tremendous pricing advantage that we are happy to pass on to our customers.
What payment options are available?
There are several ways to complete your purchase.
- Credit card (American Express, Mastercard, VISA)
- PayPal
- PayDirect
- Prepayment
- Instant Bank Transfer
- Installment Purchase
If you have a PayPal account, you can pay directly and easily via PayPal. Simply click on “Pay Now.” You will then be automatically redirected to the PayPal website, where you can complete the payment with just a few clicks. You will also receive an email from Horando with information about the payment terms.
If you select “Prepayment” as your payment method, we’ll provide our bank account information in the order confirmation. The invoice amount must be transferred to our account within 4 days. Of course, we’re always available to assist you at our toll-free number +49 (0) 951 / 99 33 010 or via email at service@horando.de.
What does "final price, including sales tax" mean?

The legislature has established very comprehensive regulations for all online stores to ensure the highest level of security and transparency for you as a user or customer before or while shopping online. One of these legal requirements is accurate price labeling. We have described each item in detail and indicated the applicable tax rate.
“Final price including statutory VAT”: This means that the amount shown is the absolute final price for you, and nothing else will be added to this amount, except for any applicable shipping costs. Furthermore, this amount includes the statutory value-added tax (VAT), so that you can have it refunded in the event of an official export to a non-EU country. In most cases, items priced as “new” or “unworn” include VAT.
Is it possible to get a VAT refund?

Individuals: We can refund the 19% German VAT and ship the item net, provided you have a permanent residence in a third country (non-EU). We charge an additional €99.90 for shipping, insurance, and customs clearance. Import duties for your destination country will be levied by the relevant authorities in that country.
Businesses: We can refund the 19% German VAT and ship the goods net of tax, provided you provide us with your full address, including your company name, VAT ID number, and a certificate of registration (from the commercial register) no older than 6 months.
If you have any further questions, you can reach us by phone at +49 (0) 951 / 99 33 010 or by email at service@horando.de.

Shipping within or outside the European Union (EU)?

Horando ships its goods with insurance within Germany and the European Union (EU) via our shipping partners UPS, FedEx, and Prosegur. For you as a customer, this service is free within Germany; a flat shipping fee of €69.90 applies to shipments to other EU countries.
If you would like your order shipped to a non-EU country, we’d be happy to assist you. Please contact us directly at +49 (0) 951 / 99 33 010 or s ervice@horando.de. Please note that additional customs duties, taxes, and fees apply for shipments to non-EU countries, and shipments are sent insured via our shipping partners UPS/FedEx/Prosegur. The flat-rate shipping fee is €99.90.
Is the merchandise insured during shipping?

All items are automatically insured for the value of the goods.
Is the merchandise insured during return shipping?

If you have received a return label from us, all items will automatically be insured for the value of the goods.
What happens in the event of a delivery delay or delivery issues?

In rare cases, we may be unable to meet the delivery deadline. Should a delivery delay occur, we will notify you immediately. Your legal rights remain unaffected.
Returning the Received Goods

Please contact us in writing if you are not satisfied with the delivered merchandise or do not wish to keep it for other reasons. You may cancel your purchase at any time within 14 days. We will send you all the necessary return documents so that you can return the watch to us with value insurance. The purchase price will be refunded after we receive and inspect the merchandise, using the same method by which payment was made. You can find more details about the right of withdrawal here.

Customer Reviews

What Our Customers Say

★ ★ ★ ★ ★

5 stars for great service
Everything went very smoothly for us! We were given an appointment to pick up the watch, during which the staff also explained in detail how to set it. That’s why we’re giving them 5 stars! We’d love to shop at Horando again.

Verified Review

★ ★ ★ ★ ★

I'd give it 6 stars if I could!

Everything went perfectly. I received the watch within the specified delivery time. My inquiries were answered promptly and professionally. However, I returned the watch because it didn’t meet my expectations in person. The return process went smoothly, and I had my money back in my account in less than a week after canceling the order. Simply perfect, and I’d like to thank the Horando team once again for their professional service. I can wholeheartedly recommend this store.

Verified Review

★ ★ ★ ★ ★

A great experience—I’d happily do it again anytime!

I’ll admit, I was a little unsure about the website at first. But both the personal interaction before and up until I placed my order, as well as the communication leading up to the safe delivery, were excellent. Thank you very much

Verified Review

★ ★ ★ ★ ★

IWC Ingenieur

Everything went very smoothly, from the order to processing and delivery. The watch was adjusted to fit my wrist upon request.

Verified Review

★ ★ ★ ★ ★

Professional service!

I received my watch quickly and easily, with pleasant communication and proactive updates within the specified waiting period (1 week).

Verified Review

WHY CUSTOMERS BUY FROM HORANDO

An independent watch dealer since 2013 - with one contact person for every purchase.

Access through a grown dealer network
We are not tied to any brand. Through partners across Europe we also reach references that come with long waiting lists at authorised retailers.
Every watch passes through our hands
Before dispatch we check the reference and serial number against the papers, adjust the bracelet to your wrist on request and pack the watch ready for shipping.
Covered from order to doorstep
Fully insured shipping, 14 days right of return, the full manufacturer's warranty on new watches and one year of HORANDO warranty on Certified Pre-Owned.
A person at the other end
A call back or WhatsApp instead of a queue - you speak to someone who knows the watch and answers your questions before you buy.

Independent since 2013 · Certified by Trusted Shops · Rated on Trustpilot · Worldwide shipping · Personal advice by phone and WhatsApp

Get €50 off your first order. Sign up now and use your welcome benefit straight away.

Discover your next watch

Loading results

Search is temporarily unavailable

Price

Discover your next watch

Loading results

Search is temporarily unavailable

Price

Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm

14-Day Return Policy

Comprehensive warranty included

Fully insured shipping worldwide

PERSONALIZED EXPERT ADVICE

100% Authentic Products

Original packaging

Original documents

Authenticated

Product details

Case

Movement

Bracelet

Features

HORANDO buyer protection

14-day statutory right of withdrawal

Insured shipping

Warranty

Omega Seamaster Diver 300M Co-Axial Master Chronometer 42mm (Reference 210.30.42.20.01.001)

Frequently asked questions about this model

What Our Customers Say

WHY CUSTOMERS BUY FROM HORANDO

Service

About Us

Legal

General

Get in touch