商品説明
The Citizen Super Jet Autodater AD51507081 is a special model from the "Citizen Jet" series, developed in 1961 with the goal of creating the thinnest automatic watch domestically produced at the time. What makes this model unique is its movement, which is gold-plated and was released only after being specially adjusted by skilled technicians, truly making it an exquisite and specially adjusted piece.
Jet Rotor
At the heart of this watch is the uniquely designed Jet Rotor, the most prominent feature of the Citizen Jet. This revolutionary mechanism supports the rotor not just at a single central point, but by distributing the load across multiple ball bearings around its outer circumference. This structure produces a distinctive "shur-shur" sound when the rotor rotates.
The "Three-Star Mark" - A Symbol of Citizen's Pinnacle
The Three-Star Mark at the 6 o'clock position on this watch's dial is a symbol of Citizen's highest quality, reserved only for special models among Citizen's luxury watches of that era that boasted particularly high precision.
Design Combining Impact and Elegance
The appeal of this model is, without a doubt, its impactful design. It features a large 37.4mm diameter case with thicker lugs than usual, giving it a strong presence even as an antique watch. The case is coated with a thick 100-micron layer of 14K gold plating, which is resistant to peeling, helping to maintain its beautiful luster.
The dial features a sunray finish that shines elegantly depending on the angle of light. At the 12 o'clock position, an elegant cursive "Citizen Super Jet Auto Dater" logo is placed. The combination of bold, imposing bar indexes and classical dauphine hands creates both a powerful presence and a refined atmosphere. With a design that is both dressy and strong, this exquisite piece is highly recommended for those seeking a special timepiece.
Operating Instructions
How to pull out the crown: Press a fingernail between the case and the crown and use it like a lever.
To prevent the crown from bending, please operate it after removing the watch from your wrist.
Gentle operation can reduce stress on the crown.
Manual winding: Rotate the crown upwards in its normal position.
Setting the time: Pull the crown out and rotate downwards.
Quick-set date: Pull the crown out and move the hands back and forth between '9 PM and 12 AM' when setting the time.
If the date changes, it's 12 AM. If it doesn't change, it's 12 PM.
2) When the hands are moved to 12 AM, the next date will appear. Then, return the hands to 9 PM.
3) Advance the hands to 12 AM.
Confirm that the date has advanced by one day.
By repeating this, you can quick-set the date one day at a time.
To reduce stress on the movement, please operate slowly.
Condition
This watch has been overhauled.
The leather strap has been replaced with a new CASSIS strap, ensuring a comfortable wearing experience.
There is some plating loss at the tip of the case lugs, a small dent on the case back, and wear on the edge.
The dial shows signs of aging, scratches, and dirt, but it is in relatively good condition for a non-waterproof model.
Due to its age, this watch is not waterproof.
Please avoid wearing it on rainy days or hot days.
Also, please be careful of impacts and magnetic fields.
| Year of Manufacture | March 1964 |
|---|---|
| Model Number | AD51507081 |
| Movement | Automatic (with manual winding) 39 jewels Date display Quick date setting function No hacking seconds function |
| Material | 14K Gold Filled (14K 100 MICRONS) |
| Size | Diameter: 37.4mm (excluding crown) Thickness: 10.6mm |
| Bracelet | New CASSIS leather strap, 18mm (cowhide/black) |
| Overhaul Date | September 2025 |
| Condition |
Not waterproof [Case] Minor scratches and scuffs, plating peeled at lug tips[Crown] Minor scratches and scuffs [Case back] Minor scratches and scuffs, dents, wear on edges [Crystal] Minor scratches that could not be removed by polishing [Dial] Tanning, scratches, dirt, paint peeling in the center [Hands] Dullness |
| Accessories | No accessories Comes with our 100-day warranty |



