ブライトリングnewスーパーオーシャンデビューInside the movement  Under the hood of the Top Time ... | 中井脩

ブライトリングnewスーパーオーシャンデビュー
Inside the movement 
Under the hood of the Top Time B31 is the new exclusive Breitling Caliber B31 featuring a free-sprung balance wheel for enhanced precision and Breitling’s signature skeletonized oscillating weight. Visible through the open caseback, the movement is finished with Geneva stripes and perlage, and offers a power reserve of approximately 78 hours off wrist.