Air Self-Defense Force Aerobatic Flight Team"Blue Impulse"Inspired byCITIZEN PROMASTER SKYThe 6th limited edition model.
CA4665-59Lhas a deep blue dial reminiscent of the team color, an instrument-like layout, and an aviation slide rule bezel.Limited to 900 piecesThis is a special specification.
With the reliable specifications of Eco Drive x 20 ATM water resistance x 1/5 second chronograph, it will liven up your daily life and even the feeling of flying.
The bright blue color is impressive. A refreshing presence that shines on your wrist.
Non-reflective sapphire glass and 20 ATM water resistant. Robust and practical design.
Aeronautical slide rule bezel x chronograph. The functional beauty of the instrument stands out.
The white dial gives a refreshing impression. Also pay attention to the color variations.
Dial configuration with a three-dimensional feel common to the series. The detailed design is attractive.
■ Main features (PROMASTER SKY/Blue Impulse Limited)
- Limited to 900 pieces:Special edition of Blue Impulse 6th edition.
- Eco-drive:Charge with light. Practical, no need to replace batteries.
- 1/5 second chronograph (60 minute total):3 counter layout with high visibility.
- 20 ATM waterproof:Safe for daily use and outdoor activities.
- Sapphire glass (non-reflective coating):Clear and scratch resistant.
- Aviation slide rule bezel:The iconic design of a pilot's watch.
- Luminous (hands/index):Easy to read even in the dark.
■Specs
| brand | CITIZEN |
|---|---|
| series | PROMASTER/SKY |
| Product number | CA4665-59L |
| caliber | B620 (Eco Drive) |
| precision | Average monthly difference ±15 seconds |
| driving time | Fully charged approximately 9 months |
| glass | Sapphire glass (non-reflective coating) |
| waterproof | 20 ATM water resistant |
| Main features | Charge warning/Overcharge prevention/Quick start/Date display/Easy date correction/24 hour display/1/5 second chronograph (60 minute meter)/Aviation slide rule/Luminous (hands/index) |
| case band | stainless steel |
| Dial color | blue |
| belt color | silver |
| Size (length x width x thickness) | Approximately 45×41×13.5mm |
| Belt width (maximum) | Approximately 20mm |
| belt around arm | Maximum approximately 21.5cm |
| weight | Approximately 165g |
| Limited | 900 pieces |
■ Instrument design that stands out in blue
The white sub-dials stand out against the dark and light blue, providing both the visibility and excitement typical of an instrument. Aeronautical slide rule bezels not only look good, but also bring the joy of handling into your hands.
■ Buyer's comment
This is Fujimuro. CA4665-59L's blue dial grabs your attention. The deep colors that change their appearance depending on the angle of light go well with the instrument-like surface. Eco-Drive x 20 ATM water resistance gives you peace of mind, and the crisp 1/5 second chronograph movement also feels great.
When you wear it, you feel like the sky is getting closer. Coupled with the special feeling of being limited to 900 pieces, this is a great piece for both your collection and your daily life.

