CITIZEN PROMASTER ECO-DRIVE BN0265-00A GREEN MEN WATCH
BN0265-00A
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- 3 Years Warranty
The Citizen Promaster BN0265-00A pairs a matte white dial with an olive green strap and a black bezel — a combination that pulls the Promaster away from pure beach-diver territory and closer to a field watch. It's the quiet standout of the four new colourways: the most legible dial in the range, dressed in the least expected colour.
The white dial carries applied indices, luminous hands and markers, and a date at 3 o'clock, with subtle orange accents on the hands and dial that tie it back to Promaster's tool-watch lineage. Against the black ion-plated unidirectional bezel, legibility is excellent in any light — above or below water.
Underneath is the full 2026 Promaster platform: the new Calibre E118 Eco-Drive movement with approximately 12 months of power reserve from a full charge — double the previous generation — and no battery to replace, ever. ISO-certified 200-metre water resistance, a screw-down crown, and an anti-reflective sapphire crystal. At 40.6mm and 11.7mm thin on a BENEBiOL™ biomass-based strap, it's compact and light enough for genuine daily wear.
At a Glance
- BrandCitizen
- CollectionPromaster Dive
- MovementCalibre E118 Eco-Drive
- Case Size40.6mm
- Thickness11.7mm
- DialMatte White
- AccentsSubtle Orange
- BezelBlack IP, Unidirectional
- StrapOlive Green BENEBiOL™
- GlassSapphire, Anti-Reflective
- Water Resistance200m, ISO-Certified
- Full Charge ReserveApprox. 12 Months
Why You'll Love It
- The white-dial-and-olive-strap combination gives this a field-watch character the other three colourways don't have — it reads as capable and understated rather than beach-ready.
- A matte white dial against a black bezel is the most legible configuration in the range — genuinely easy to read at a glance, in bright sun or low light.
- Subtle orange accents on the hands and dial connect it visually to Promaster's tool-watch heritage without tipping into high-visibility styling.
- An approximately 12-month power reserve from a full charge is double the previous generation of Citizen Eco-Drive divers — genuine peace of mind even if it sits unworn for months.
- Genuine ISO dive certification means this meets the recognised international standard for dive watches, not just a "water resistant" marketing claim.
- The BENEBiOL™ strap uses a biomass-based raw material developed by Mitsubishi Chemical, offering improved durability with a genuinely lower environmental footprint.
- At 40.6mm and 11.7mm thin, it avoids the oversized proportions common to dive watches and slips easily under a sleeve.
- Anti-reflective sapphire crystal, a screw-down crown and antimagnetic construction round out a properly engineered tool watch.
Perfect For
- Dive Watch Enthusiasts
- Field & Military-Inspired Style
- Eco-Drive & Solar Watch Fans
- High-Legibility Dials
- Active & Outdoor Lifestyle
- Sustainability-Minded Buyers
- First Dive Watch
- Gift for Him
Key Features
- Matte white dial — with applied indices, luminous hands and markers, and subtle orange accents.
- Black ion-plated unidirectional bezel — genuine dive-timing functionality, high contrast against the white dial.
- Olive green BENEBiOL™ biomass-based polyurethane strap — pin buckle, improved durability and lower environmental footprint.
- Citizen Eco-Drive Calibre E118 — new-generation light-powered movement, no battery required, holding a charge for approximately 12 months in full darkness once fully charged.
- ISO-certified 200m water resistance — with a screw-down crown for genuine dive-rated sealing.
- Accuracy of approximately ±15 seconds per month — precise quartz timekeeping.
- Anti-reflective sapphire crystal — scratch-resistant and glare-free.
- Antimagnetic construction — Type 1 magnetic resistance for everyday resilience.
- Date display — at 3 o'clock.
- 40.6mm silver-tone stainless steel case — 11.7mm thick.
- Insufficient Charge Warning and Overcharge Prevention — the watch manages and protects its own charge automatically.
Technical Specifications
The Citizen Promaster BN0265-00A is a 40.6mm men's Eco-Drive diver powered by the new Calibre E118, accurate to approximately ±15 seconds per month with a full-charge power reserve of approximately 12 months. The silver-tone stainless steel case measures 11.7mm thick with an anti-reflective sapphire crystal, screw-down crown and black ion-plated unidirectional bezel, water resistant to 200 metres and ISO-certified for diving. The matte white dial carries applied indices, luminous hands and markers with subtle orange accents, and a date display at 3 o'clock. It's finished on an olive green BENEBiOL™ biomass-based polyurethane strap with a pin buckle.
| Model Number | BN0265-00A |
| Case Material | Stainless Steel, Silver-Tone |
| Case Shape | Round |
| Case Diameter | 40.6mm |
| Case Thickness | 11.7mm |
| Bezel | Black Ion-Plated, Unidirectional |
| Crown | Screw-Down |
| Glass | Sapphire Crystal, Anti-Reflective |
| Magnetic Resistance | Type 1 |
| Water Resistance | 200 Metres, ISO-Certified |
| Colour | Matte White |
| Accents | Subtle Orange on Hands & Dial |
| Markers | Applied Indices, Luminous |
| Display | Hours, Minutes, Seconds, Date (3 O'Clock) |
| Material | BENEBiOL™ Biomass-Based Polyurethane |
| Colour | Olive Green |
| Clasp | Pin Buckle |
| Caliber | Citizen E118 |
| Type | Eco-Drive (Light-Powered) |
| Accuracy | Approx. ±15 Seconds/Month |
| Full Charge Reserve | Approx. 12 Months |
| Functions | Insufficient Charge Warning, Overcharge Prevention |
Best Matched With
- Olive Field Jacket
- Khaki Chinos
- Canvas Outerwear
- Weekend Casual
- Outdoor Adventure
- Travel Essentials
Frequently Asked Questions
Is the dial green?
No — the dial is matte white. The green refers to the strap, which is olive green. The bezel is black, and the case is silver-tone stainless steel. The overall effect is a high-legibility white dial in a field-watch colour scheme.
Is this a genuine dive watch?
Yes. It carries ISO certification for dive watches, with a screw-down crown, unidirectional bezel and 200 metres of water resistance — a real diving instrument, not just diver-styled.
How does this compare to the other Promaster colourways?
Same Calibre E118, same 40.6mm case, same ISO 200m certification across all four. This is the field-diver of the set — the white dial and olive strap read as more rugged and utilitarian. The blue (BN0267-04L) leans nautical, the orange (BN0268-01E) is the high-visibility statement, and the black (BN0266-07E) is the most neutral everyday option.
How does the rotating bezel work?
The unidirectional bezel tracks elapsed time — line up the marker with the minute hand at the start of a dive or activity, then read off elapsed time as the bezel rotates. It only turns one way, a safety feature that prevents misreading less time than has actually passed.
What is BENEBiOL™?
BENEBiOL™ is a biomass-based raw material for polyurethane, developed by Mitsubishi Chemical Corporation. It's used in this watch's strap to improve durability while lowering the environmental footprint compared to standard petroleum-derived polyurethane.
What is Eco-Drive?
Eco-Drive is Citizen's light-powered movement technology. A cell beneath the dial converts any light source — sunlight, a lamp, an overhead office light — into energy stored in a rechargeable cell, so the watch never needs a battery.
How long does the charge last if I stop wearing it?
Approximately 12 months from a full charge with no further light exposure — double the previous generation of Citizen Eco-Drive divers. An Insufficient Charge Warning function alerts you before the reserve runs out.
Can I actually dive with this watch?
Yes. With ISO certification and 200 metres of water resistance, it's built and tested for recreational diving, not just swimming or water sports.
Will 40.6mm fit my wrist?
40.6mm sits comfortably in the modern men's diver range and suits most wrist sizes well. At 11.7mm thick it's genuinely compact for an ISO-certified diver and slips easily under a sleeve.
Is the strap adjustable?
Yes. The BENEBiOL™ strap closes with a standard pin buckle and can be sized as needed. City Chain can assist with fitting in-store if required.
What warranty does this watch come with?
The BN0265-00A comes with a 3-year warranty when purchased from City Chain Singapore, an authorised Citizen retailer. Keep your warranty card and proof of purchase — both are required when submitting the watch for service at any City Chain outlet.
Why Buy from City Chain Singapore
- Authorised Retailer 100% genuine Citizen product
- 3-Year Warranty Covered on every purchase
- Free Shipping All orders within Singapore
- Strap Fitting Assist in-store
Extra $15 OFF with min. $200 spend
Use Code: FORYOU15
Extra $30 OFF with min. $400 spend
Use Code: FORYOU30
Caliber No.: E118
Movement: Eco-Drive
Strap: Polyurethane Strap
Water Resistant: Water Resistant to 200m
Thickness: 11.7mm
Case Size: 40.6mm
Case: Stainless Steel
Glass: Sapphire Glass
Maximum run time from full charge (Normal Use Condition): Approximately 12 months
Date Display
Insufficient Charge Warning Function
Overcharge Prevention Function
Delivery within Singapore
Order by 11AM
(Mon - Fri for faster processing)
Checkout options may vary depending on order value and eligibility.
• Free Speedpost Domestic Delivery — 1–2 business days
• Free DHL Domestic Delivery — next business day
• Express Delivery — S$30, order by 2PM
• Click & Collect — ready in 2–3 business days. Please wait for the collection confirmation email before visiting the store.
Weekend & Public Holiday Orders
Orders placed after the applicable cut-off time, on weekends, or on public holidays will be processed on the next business day. Delivery will take place on the next available business day based on the selected delivery service.
During peak periods, festive seasons, major launches or sale events, additional processing and delivery time may be required.
For online purchase, you can have bracelet or leather strap adjustments done at any City Chain store. Please bring along your warranty book for the service.
