Citizen-<BR>Promaster Marine Diver Blue<BR/>(NB6021-68L)
Citizen-<BR>Promaster Marine Diver Blue<BR/>(NB6021-68L)
Citizen-<BR>Promaster Marine Diver Blue<BR/>(NB6021-68L)
Citizen-<BR>Promaster Marine Diver Blue<BR/>(NB6021-68L)

Promaster Marine Diver Blue

Regular price£795.00

  • Free UK shipping
  • Authorised stockist
  • 30 Day Return Policy
  • Low stock - 1 item left
  • Inventory on the way

An iconic Citizen Promaster Marine Diver Blue Men's timepiece (NB6021-68L), inspired by the design of the 1977 Challenge Diver. In 1983, a Challenge Diver was found on Long Reef Beach in Australia. The watch was covered in barnacles after having been submerged in the Pacific Ocean, but the movement inside had remained protected from the seawater and was still ticking. In 2022, the Promaster Automatic Diver pays homage to the original with a 41mm case, sapphire glass with a flat cut top and a domed underside, and the sides of the glass are bevelled to provide a retro look. Additional features include a rotating bezel that's inset into the case, magnetic resistance, ISO compliant, green lume hands and markers and a Super Titanium™ case and bracelet. With up to 42 hours of running time when fully wound and an average daily accuracy of -10 to +20 seconds, this bold timepiece is a must-have in your collection.


Model Number NB6021-68L
Edition Promaster Marine Diver Blue
Gender  Mens
Dial Colour Blue
Glass Sapphire Crystal
Case Width 41 mm
Case Material Super Titanium
Band Colour Silver
Band Material Super Titanium 
Movement Eco-drive
Water Resistance  200 m

As we are UK based we only offer UK Delivery. We are constantly updating our products and strive to have a 100% 'in-stock' e-Commerce platform...although this cannot always be guaranteed.

  • Item's in stock: 2-3 Days
  • Item's out of stock: 4-5 Weeks

If you would like specific dates for delivery then please contact us

Postage & Package (For Watches)

All Postage and Packaging for any of our watches is shipped with from the original box from the Brand with the Guarantee from the Manufacturer 


Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. If a visual defect is found with the item(s) upon arrival, you must notify us within 48 hours or your refund/ return may not be accepted.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

To complete your return, we require a receipt or proof of purchase.

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If a visual defect is found with the item(s) upon arrival, you must notify us within 48 hours

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.

Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at

Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at and send your item to: 

114 Vyse St
West Midlands
B18 6LP

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

If you are shipping an item over £75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.


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About us
Design Centre is an independent jewellery retailer selling distinctive watches, engagement and bridal jewellery, Based in the historic Jewellery Quarter of Birmingham, since 1977.
About the brand


A trusted name and brand leader in the watch industry for over 100 years, known for their technical precision and innovative mindset.

Citizen Watches at Design Centre | About the brand

5 Year Guarantee

As an Authorised Stockist, all our Citizen Watches include a 5 Year Guarantee.

Price Match

We Price-Match on all our Sale Watch Items, making sure you're getting the best possible deal!

Original Packaging

All Citizen related products come in their original packaging.

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