Product Description
The Citizen Collection BM6770-51B is a Japanese Domestic Market (JDM) Eco-Drive solar-powered dress watch built for everyday business and formal wear. It features a highly readable white dial with crisp Arabic numeral indices, remaining entirely unaffected by passing fashion trends. [1, 2]
Equipped with Citizen’s proprietary Eco-Drive technology, it converts any indoor or outdoor ambient light source into energy. This eliminates the need for battery replacements. The watch incorporates a premium scratch-resistant sapphire crystal, a date complication at 3 o’clock, and smart low-power indicators. Its slim, lightweight profile provides a comfortable fit that slides easily under dress shirt cuffs. [1, 2]
Technical Specifications
| Feature [1, 2, 3, 4, 5] | Specification Details |
|---|---|
| Model / Reference | Citizen Collection BM6770-51B |
| Country of Origin | Made in Japan |
| Movement / Caliber | Citizen E111 Eco-Drive Solar Quartz |
| Accuracy | Average of ±15 seconds per month |
| Power Reserve | Up to 6 months of operation on a full charge |
| Dial Color | Matte White with high-contrast Arabic numerals |
| Case Dimensions | 37.0 mm diameter and an ultra-thin 7.8 mm thickness |
| Band Width | 20 mm lug width |
| Total Weight | Approximately 104 – 106 grams |
| Case Material | Solid Stainless Steel |
| Band / Clasp | Stainless Steel bracelet with Fold-Over Push-Button Deployant closure |
| Glass Type | Premium flat Sapphire Crystal (highly scratch-resistant) |
| Water Resistance | 30 meters / 3 ATM (Daily water resistance against rain/splashes) |
| Core Complications | Time (Hours, Minutes, Central Seconds), Date display window, and hacking seconds |
| Smart Functions | Insufficient charge warning (second hand jumps at 2-second intervals) and overcharge prevention |
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