Royal Sportline Aqua Blue by Crownlab

Built around an octagonal sports-luxury design and featuring the reliable NH35 automatic movement, the Royal Sportline Aqua Blue by Crownlab is a 41mm high-quality timepiece that combines excellence with accessibility, delivering a bold, modern wrist presence with an exquisite textured dial.

Carefully assembled by experts with the following features:

Premium Features:

Diameter: 41mm (excluding the crown)
Movement: NH35 automatic movement (reliable, stable mechanical calibre)
Thickness: 12mm
Glass: Sapphire, anti-scratch with anti-reflective treatment
Luminescent: Yes
Case: Premium 316L stainless steel, brushed and polished finish
Crown: Screwed
Wrist size: 14.5cm to 22cm (adjustable)
Lugs: 20mm
Bracelet: Premium solid 316L stainless steel, brushed and polished (secure folding clasp)
Case back: Crystal (movement visible)
Water resistance: 10 ATM
Power reserve: 41 hours
Dial: Vibrant aqua blue waffle textured finish with polished baton indices and a date window at 3 o'clock

Independent Custom Build

Crownlab timepieces are independently assembled custom watches, built on genuine Seiko® movements with aftermarket components. They are not original Seiko® products and are not affiliated with, authorised by, or endorsed by Seiko Watch Corporation or any other watch manufacturer or trademark holder. Any third-party names are used solely to describe compatible components. All logos, trademarks and brand names are the property of their respective owners.

Made with care

Great value

Elegant design

Quality materials

Precision: Powered by high-caliber Japanese automatic movements for flawless accuracy and reliability.

Materials: Crafted with surgical-grade stainless steel and scratch-resistant sapphire glass.

Craftsmanship: Individually assembled, calibrated, and rigorously tested for perfect execution.

Fast Processing: Orders are inspected, securely packaged, and dispatched within 1–3 business days.
Tracked Delivery: A tracking number will be emailed to you as soon as your timepiece ships.
Hassle-Free Returns: We want you to love your watch. If you are not completely satisfied, you can return your unworn timepiece in its original packaging within 14 days of delivery.

Need a return or exchange? Simply reach out to our dedicated support team at service@crownlab.com and we will guide you through the process.