Citizen Promaster E365 Sea BN1024-01Z – Professional 300M Eco-Drive Diver – Red Gradient Dial

The Citizen Promaster E365 Sea BN1024-01Z is a serious professional-grade dive watch built for extreme capability while delivering one of the most distinctive designs in the Promaster collection. Featuring a dramatic deep red gradient dial, 300 meters of water resistance and Citizen’s exceptional E365 Eco-Drive movement, this is a purpose-built diver with unmistakable wrist presence.

The substantial 46mm stainless-steel case is engineered around professional diving functionality. Its black rotating dive bezel features an aggressive, easy-grip profile designed for operation even while wearing gloves, while the screw-down crown positioned at 4 o'clock keeps the design comfortable and protected during active use.

The dial is one of the BN1024-01Z's standout features. Its rich red coloration gradually darkens toward the perimeter, creating an almost black appearance around the outer edge. Oversized luminous hour markers and broad hands provide excellent underwater legibility, while a discreet date display at 4 o'clock adds everyday functionality without compromising the tool-watch aesthetic.

E365 Eco-Drive – 365-Day Power Reserve

At the heart of the BN1024-01Z is Citizen's remarkable Caliber E365 Eco-Drive movement.

Powered by natural or artificial light, the E365 stores enough energy when fully charged to keep the watch operating for an extraordinary 365 days – an entire year – even without additional exposure to light.

That means no routine battery replacement and exceptional reliability whether the watch is being worn regularly or spending extended periods in a collection.

Professional 300M Dive Capability

This isn't simply a dive-inspired sports watch. The Promaster E365 is engineered for serious underwater use with an impressive 300 meters / 30 BAR water resistance.

The dial is protected by an anti-reflective sapphire crystal, providing excellent scratch resistance while helping maintain visibility in challenging lighting conditions.

Citizen pairs the watch with a BENEBiOL™ polyurethane dive strap, which incorporates plant-derived materials and provides the durability and flexibility required for aquatic use.

Key Features

• Model: BN1024-01Z

• Collection: Citizen Promaster Sea

• Movement: Citizen Caliber E365 Eco-Drive

• Power Source: Light powered – natural or artificial light

• Power Reserve: Approximately 365 days on a full charge

• Functions: Hours, minutes, seconds and date

• Dial: Deep red gradient

• Case Diameter: 46mm

• Case Material: Stainless steel

• Bezel: Black rotating dive bezel

• Crown: Screw-down crown positioned at 4 o'clock

• Crystal: Anti-reflective sapphire crystal

• Strap: BENEBiOL™ polyurethane

• Clasp: Traditional buckle

• Water Resistance: 300 meters / 30 BAR

• Weight: Approximately 142g

• Professional Dive Construction

• High-visibility luminous hands and markers

The Citizen Promaster E365 BN1024-01Z is built for the collector who wants something considerably more serious than the typical everyday dive watch. Its combination of a 365-day Eco-Drive power reserve, professional 300M water resistance, sapphire crystal, imposing 46mm construction and spectacular red gradient dial gives it both genuine technical capability and tremendous visual presence.

Whether it's actually taken underwater or added to a serious Promaster collection, the BN1024-01Z represents Citizen doing what it does best: combining innovative Japanese technology with rugged professional dive-watch engineering.

There’s also a great extra selling point worth mentioning in your listing: this model won a 2026 Red Dot Design Award. Citizen specifically identifies the BN1024-01Z as the award-winning Promaster Eco-Drive Professional Diver 300m. (CITIZEN WATCH Global Network)

Citizen official BN1024-01Z page