Seiko IZUL Spring Drive Chronograph SDAA001, SDAA003 and SDAA005

Seiko’s involvement in the Olympics started in 1964 during the Tokyo Olympics. Four decades later, the culmination of all those years of research and development, the result is the IZUL Spring Drive Chronograph. Seiko released 3 models, SDAA001, SDAA003 and SDAA005. The SDAA001 has a rotating dial and upside down sub-dials. All three models feature a bull-head configuration, having the crown at the 12 o’clock position. The design looks like a regular stopwatch.

* Rotating Dial
* Sapphire Crystal non-reflective coating
* Water resistant up to 10 ATM
* JIS antimagnetic watch 1
* SDAA001 Size: diameter 51.0mm / thickness 14.2mm
* SDAA003 and SDAA005 Size: diameter 47.2mm / thickness 14.4mm
* Screw down crown
* Movement : Spring Drive Chronograph 5R85
* Automatic self-winding
* ± 15 seconds per month (between ±1 second on average)
* Temperature 5 °C to 35 °C
* Power reserve of 72 hours
* Stopwatch functions (a total of 12 hours 30 minutes total)
* Power reserve display
* 49 Jewels
* 397 pieces
* SDAA003 and SDAA005 retail price 735,000 Yen
* SDAA001 retail price 892,500 Yen

Source