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Not everyone wears a diver – and even fewer choose the classic kind.The Scubamaster 58 is made for men who appreciate rugged simplicity, mechanical soul, and timeless value.With its retro dial, durable automatic movement, and vintage-tone lume, this watch doesn’t shout – it resonates.If you wear something because it means something – this one's for you.
Diameter: 39mm (excluding the crown)
Movement: Seiko NH35 automatic movement
Thickness: 12mm
Glass: Sapphire, anti-scratch
Luminova: Yes
Case: 904L stainless steel
Crown: Screwed
Bezel: Ceramic
Wrist size: 14.5cm to 22cm (adjustable)
Lugs: 20mm
Bracelet: Rubber strap (with a security clasp)
Case back: Steel (closed back)
Water resistance: 20 ATM (200m)
Scuba 58 – Precision and Elegance Underwater
The Scuba 58 is the perfect combination of classic diving watch design and modern technology, offering an exceptional balance between style, durability and precision.
NH35 Automatic Movement – Equipped with a reliable and efficient caliber, with a power reserve of approximately 41 hours.
Iconic Design – Inspired by vintage diving watches, the Scuba 58 features a 39mm polished stainless steel case, perfect for any wrist.
Unidirectional rotating ceramic bezel – Highly scratch-resistant material with a premium aesthetic, ideal for measuring dive times with maximum precision.
Legibility in any condition – Dial with Super-LumiNova luminescent markers, providing exceptional visibility in the dark.
Sapphire Crystal – Maximum scratch resistance with anti-reflective treatment for clear reading at any angle.
200M water resistance – Perfect for recreational diving and any underwater adventure.
Rubber Strap – Ergonomic and durable design, ideal for a comfortable fit both in and out of the water.
Personalize it with laser engraving
A tribute to classic watchmaking, created for those looking for an elegant and functional watch
Shipping Details
Orders
Each Royal timepiece is hand built to order according to your chosen design and specifications. To ensure the highest possible standards, we have a lead time of 1 week from the date of order to dispatch. This allows us to carry out the necessary quality control procedures and ensure your watch is crafted to your utmost satisfaction. All orders placed through our webstore are subject to the given lead time even if the item is shown as "In stock".
Shipping
All Worldwide shipments are fully insured with tracking and mainly handled by our delivery partner. Once shipped, you will receive a personal notice with dedicated tracking information. International orders typically take 5 days to be delivered. These times may vary depending on unavoidable circumstances faced by the delivery partner. Shipping charges are calculated upon checkout and may vary depending on the country of destination.
Customs Import Tax for International Customers
International orders may be subject to import taxes, customs duties, and/or fees imposed by your countries import laws. Such charges are not included in the product price or shipping cost, and are to be borne by the buyer. The buyer is responsible for any associated costs and must abide by their country's laws, regulations, and restrictions.

Seikomariner Scuba 58
FAQs
Please read our FAQs page to find out more.
What is a Watch Mod?
A Watch Mod is a custom-built timepiece made by modifying or replacing key components such as the dial, bezel, or hands to achieve a unique and personalized design.
At Royal Mods, each watch is hand-assembled with care and precision, using premium parts inspired by iconic models, to deliver a timepiece that’s both distinctive and built to last.
How can I adjust my watch size?
Each watch comes with an adjustment kit, making it easy for you to customize the bracelet size for a perfect fit.
Shipping Time ?
Total delivery time is 5–9 business days. Every watch is handmade and tested to make sure it’s perfect before we ship it.
About the cost, shipping is totally free.
Are they original ?
We use genuine Seiko movements to create unique watches inspired Top Designers.
Our timepieces are not replicas and we are not affiliated the Seiko brand in any way.
Do you use authentic Seiko movements ?
Yes, we use genuine Seiko NH35/NH38 movements, renowned for their precision and reliability. Each watch is carefully assembled in our workshop to ensure a unique product.
Please note that we are not affiliated with Seiko. Our watches are not replicas, they are fully customized timepieces built from compatible components.