Seiko Solar Vintage Women's Manual Wind Watch

From AI.

This is a vintage Seiko wristwatch. Based on the engraving on the case back, it is estimated that this watch was manufactured in April 1978.
A Seiko Solar hand-winding watch with a silver stainless steel case and band.

Explanation of the case back engraving:
The case back of this watch is engraved with important information to identify the manufacturing period and model.
* Serial Number (8401125): The first two digits of a Seiko serial number indicate the manufacturing period.
* The first digit 8 indicates the last digit of the manufacturing year (1978).
* The second digit 4 indicates the manufacturing month (April).
* Case Number (10-8260): 10 indicates the movement caliber number, and 8260 is a code for the case shape and design.
* Material Notation (POP BACK ST. STEEL): Indicates that the case back is made of stainless steel.
* Daini Seikosha Logo: The lightning bolt-like mark at the bottom is a logo indicating that this watch was manufactured at Seiko's Kameido factory (Daini Seikosha).

It is in working condition.

- Brand: Seiko
- Model: Solar
- Material: Stainless Steel
- Color: Silver
- Country of Origin: Japan

Thank you for looking.