Contents: main body, box, instruction manual, warranty card included in the instruction manual Water resistance: 10 ATM waterproof function Mobile Link function for interlocking functions with a compatible smartphone via BluetoothⓇ communication Automatic time correction: Corrects the time by linking a smartphone via BluetoothⓇ. Cell phone search: Press and hold the button on the watch to make your smartphone sound within the Bluetooth range, which is useful when you can't find your smartphone. Item Shape: Round Details: EDIFICE continues its evolution as an advanced, high-performance metal chronograph with a new collaboration model with the Scuderia AlphaTauri F1 team. For the first time ever, the dial and bezel of this new collaboration are made of EDIFICE's 6K dry carbon fiber, the same 6,000 strands of filament that are woven into the wings and floor of Scuderia AlphaTauri's F1 cars. The 6K carbon fiber is made of 6,000 interwoven filaments, the same filaments used in the wings and floors of Scuderia AlphaTauri's F1 cars. The color scheme is navy blue, inspired by the team colors. The team logo appears on the dial, caseback and rings. The EQB-1000AT is a high-performance analog chronograph based on the thin solar smartphone-linked model. The ECB-10AT is a combination analog and digital model based on the smartphone-linked model. The ECB-10AT is a combination analog and digital model based on the Smartphone Link model, and is equipped with a schedule timer to support team members with their minute-by-minute schedules during race week. Both models support the team with the accuracy in seconds that the team highly values and the easy to operate world time. Mobile Link function (interlocking functions with compatible cell phones via Bluetooth communication) ● Dual time ● Stopwatch (1 second, 24-hour total, with flyback, and one-push measurement start from time mode) ● Time Power-saving function (stops moving hands after a certain period of time to save power in dark places) ● Date and day of the week display ● Fully automatic calendar ● Driving time without solar power generation from the time of full charge: approx. 5 months when using functions, approx. 19 months when in power-saving mode When the watch is not linked to a smartphone, it operates with normal quartz precision (average monthly difference: ±15 seconds). The EQB-1000AT and ECB-10AT are certified under the Japanese Radio Law.