CITIZEN ECO-DRIVE BM7108-81A STAINLESS STEEL MEN WATCH
BM7108-81A
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- 3 Years Warranty
The Citizen BM7108-81A does the simple things properly. A white dial with large black Arabic numerals and index markings is about as legible as a watch gets — no styling flourishes competing for attention, just a dial you can read instantly at arm's length.
What lifts it above the obvious is what's underneath. Sapphire glass protects the dial — significantly harder and more scratch-resistant than the mineral glass most watches at this price use. A screw-down crown seals the case to 100 metres, which genuinely covers swimming rather than just splashes. Both are uncommon at this level.
The 41mm stainless steel case is brushed and polished and just 9.3mm thick — genuinely slim given the screw-down crown and water rating. Inside is Citizen's Caliber E111 Eco-Drive, charged by any light with approximately 6 months of reserve and no battery to replace, ever. A date display and luminescent hands round out a watch built to be worn daily and thought about rarely.
At a Glance
- BrandCitizen
- CollectionEco-Drive
- MovementCaliber E111 Eco-Drive
- Case Size41mm
- Thickness9.3mm
- Weight140g
- DialWhite, Black Arabic Numerals
- GlassSapphire
- CrownScrew-Down
- BraceletStainless Steel, 21mm
- Power ReserveApprox. 6 Months
- Water Resistance100m
Why You'll Love It
- Sapphire glass at this price is a genuine step up — significantly harder and more scratch-resistant than the mineral glass most watches in this range use, so the dial stays clear for years.
- A screw-down crown is uncommon outside dive watches, and it's what allows the 100-metre rating. This handles swimming, not just rain.
- Large black Arabic numerals on a white dial is the most legible configuration there is — you read the time instantly rather than after a moment's focus.
- At 9.3mm thick this is genuinely slim for a 41mm watch with a screw-down crown and 100m sealing — it slides under a shirt cuff without catching.
- No battery, ever. Eco-Drive converts any light — sunlight or an office lamp — into the energy that runs the watch, with roughly six months of reserve in darkness.
- Brushed and polished surfaces across the case, bezel and bracelet catch light at different angles rather than reading as one flat block of steel.
- Luminescent hands keep it readable in low light, which a plain dress watch often can't manage.
- White dial and steel is the most versatile combination in watchmaking — smart with tailoring, relaxed with a shirt, and it won't date.
Perfect For
- Everyday Versatility
- High-Legibility Dials
- Eco-Drive & Solar Watch Fans
- Office & Smart-Casual
- Swimming & Water Activities
- Low-Maintenance Ownership
- Gift for Him
Key Features
- White dial with large black Arabic numerals — plus index markings for precise reading.
- Luminescent hands — readable in low light.
- Sapphire glass — scratch-resistant, a genuine upgrade over mineral glass.
- Screw-down crown — sealing the case for 100-metre water resistance.
- Date display.
- Citizen Eco-Drive Caliber E111 — light-powered movement, no battery required, with approximately 6 months of power reserve.
- Insufficient Charge Warning and Overcharge Prevention — the watch manages and protects its own charge automatically.
- 41mm stainless steel case — 9.3mm thick, 140 grams, brushed and polished, with a fixed steel bezel and solid caseback.
- Stainless steel bracelet — 21mm width, folding clasp.
- 100-metre water resistance (10 ATM) — suitable for swimming.
Technical Specifications
The Citizen BM7108-81A is a 41mm men's Eco-Drive watch powered by Caliber E111, with approximately 6 months of power reserve from a full charge. The brushed and polished stainless steel case measures 9.3mm thick and the watch weighs 140 grams, with a fixed steel bezel, solid caseback, screw-down crown and sapphire crystal, water resistant to 100 metres. The white dial carries large black Arabic numerals with index markings, luminescent hands and a date display. It's finished on a 21mm stainless steel bracelet with a folding clasp.
| Model Number | BM7108-81A |
| Case Material | Stainless Steel, Silver-Tone |
| Case Shape | Round |
| Case Diameter | 41mm |
| Case Thickness | 9.3mm |
| Weight | 140g |
| Finishing | Brushed & Polished |
| Bezel | Fixed Steel, Brushed & Polished |
| Crown | Screw-Down |
| Caseback | Solid |
| Glass | Sapphire, Scratch-Resistant |
| Water Resistance | 100 Metres (10 ATM) |
| Colour | White |
| Markers | Large Black Arabic Numerals & Index Markings |
| Hands | Luminescent |
| Display | Hours, Minutes, Seconds, Date |
| Material | Stainless Steel, Silver-Tone |
| Width | 21mm |
| Clasp | Folding |
| Caliber | Citizen E111 |
| Type | Eco-Drive (Light-Powered) |
| Power Reserve | Approx. 6 Months (180 Days) |
| Functions | Date, Insufficient Charge Warning, Overcharge Prevention |
Best Matched With
- Navy Suit
- White Oxford Shirt
- Charcoal Tailoring
- Dark Denim
- Smart-Casual Chinos
- Weekend Casual
Frequently Asked Questions
Is the crystal sapphire?
Yes. Sapphire is significantly harder and more scratch-resistant than the mineral glass used on most watches at this price, so the dial stays clear through years of daily wear. It's one of the genuine upgrades on this model.
What is a screw-down crown and why does it matter?
The crown screws tightly against the case rather than simply pushing in, creating a much better seal against water. It's what allows the 100-metre rating here, and it's uncommon on watches outside dive and sports ranges.
Can I swim with this watch?
Yes. At 100 metres (10 ATM) with a screw-down crown, it's rated for swimming and general water activities. Make sure the crown is fully screwed down before it goes near water. It isn't designed for diving.
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 6 months — around 180 days — from a full charge with no further light exposure. An Insufficient Charge Warning alerts you before the reserve runs out, and a short session in daylight restores it.
Does an Eco-Drive watch need servicing?
Far less than a mechanical watch — there's no mainspring or balance assembly to wear in the same way. The rechargeable cell is designed to last many years under normal use. Bring it to any City Chain outlet if you notice reduced charge retention over time.
Will 41mm fit my wrist?
41mm sits comfortably in the modern men's range and suits most wrist sizes well. At just 9.3mm thick it's genuinely slim — it slides under a shirt cuff easily, which a 41mm watch with this water rating often can't manage.
Is the bracelet adjustable?
Yes. The bracelet can be resized by adding or removing links. City Chain offers complimentary bracelet sizing at any outlet — bring your warranty book along for the service.
What warranty does this watch come with?
The BM7108-81A 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
- Bracelet Adjustment Size it in-store
Extra $15OFF with min. $200 spend
Use Code: 15FORYOU
Extra $30OFF with min. $400 spend
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Caliber No.: E111
Movement: Eco-Drive
Strap: Stainless Steel
Water Resistant: Water Resistant to 100m
Thickness: 9.3mm
Case Size: 41mm
Case: Stainless Steel
Glass: Sapphire Glass
Maximum run time from full charge (Normal Use Condition): Approximately 6 months
Date Display
Eco-Drive
Insufficient Charge Warning Function
Overcharge Prevention Function
Gender: Gent
Delivery within Singapore | Order by 11AM
(Checkout options may vary depending on minimum order requirements)
• Free Standard Delivery (3 business days)
• Free Next Day Delivery
• Express Delivery at $30 (order by 2PM)
• Click & Collect (ready in 2–3 business days)
Weekend & Public Holiday Orders
Orders placed during this time will be processed on the next business day.
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.
