# 7AA Premium Collection
PRECISION AND STYLE FOR YOUR WRIST ❣️
- Working Tourbillon
- 12 Hour Analog
- Water Resistant
- Skeletal Open Heart Dial
- Premium Quality Leather Finish Silicone Strap
- Combines the Gun Metal style Case & Brand Embossed Bezel
- Back Open With Visible Skeleton Machinery
- Dual Heavy clasp Original lock
High Quality & Performance 100% Original Japanese Automatic machinery ❤️
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| Device | White | Black | Red | Green |
|---|---|---|---|---|
| Chair | 14-14.5 | 15-15.5 | 16-16.5 | 17-17.5 |
| Moniter | 14-14.5 | 15-15.5 | 16-16.5 | 17-17.5 |
| Keycaps | 14-14.5 | 15-15.5 | 16-16.5 | 17-17.5 |
| CPU | 14-14.5 | 15-15.5 | 16-16.5 | 17-17.5 |
| Mouse | 14-14.5 | 15-15.5 | 16-16.5 | 17-17.5 |
A chronograph is a watch that can measure elapsed time. It typically has three sub-dials that can be used to measure seconds, minutes, and hours.