Last update: 2024-08-14
I purchased a Seiko 5 SBSA257 at Bic Camera in Ginza, Tokyo on 2024-07-06. I paid ¥37,240 (C$325.12 at the time of purchase, tax free and special discounts applied in store).
This is a mechanical watch powered by a spring. To use it from a stopped state, turn the crown 20 turns by hand to wind up the spring before starting the watch. Additionally, mechanical watches are subtly affected by the conditions in which they are used (e.g., duration worn, temperature, arm movement, the amount wound, etc.); thus, the amount of error is not constant.
When affected by a strong magnetism from outside, a mechanical watch may lose/gain time temporarily. The parts of the watch may become magnetized depending on the extent of the effect. In such a case, consult the retailer from whom the watch was purchased since the watch requires repair including demagnetizing.
The watch is provided with a date and day of the week function and is so designed that the date and day of the week change once every 24 hours. The date changes around midnight, and the day of the week changes at around 4:00 a.m. If AM/PM is not properly set, the date will change at 12 o’clock noon, and the day of the week will change at around 4:00 p.m.
To wind up the watch, turn the crown clockwise slowly.
Once the watch is wound up fully, it operates for about 41 hours. If the watch is used without being wound up fully, gain or loss of time may result. To avoid this, wear the watch for more than 10 hours a day. If the watch is used without being worn on the wrist, be sure to wind it up fully every day at a fixed time.
Pull out the crown to the second click when the seconds hand is at the 12 o’clock position; the seconds hand stops on the spot.
Turn the crown to advance the hands until the date changes to the next. The time is now set for the A.M. period. Push the crown back in to the normal position in accordance with a time signal. The seconds hand immediately starts moving.
It is necessary to adjust the date at the end of February and 30-day months.
Example: To adjust the date in the A.M. period on the first day of a month following a 30-day month.
The watch displays “31” instead of “1.” Pull out the crown to the
first click.
Turn the crown counterclockwise to set the date to “1” and then push the
crown back in to the normal position.
Avoid amending the date when the watch is displaying between 9 PM and 4 AM. Doing so may cause damage.
For over 50 years, Seiko 5 Sports has delivered consistently high levels of reliability, durability, and performance. Inspired by the best-selling SNXS series from the classic Seiko 5 collection of the past, this exceptional watch offers a compact case and bracelet design incorporating iconic elements of the original models with upgraded performance for today. Providing automatic technology that you control with every movement, this dynamic timepiece is powered by a 24-jewel movement that beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 41 hours and manual winding capability. Framed by a metallic minute track, the sunray-finish dial features diamond cut indices with grooved top surfaces, a day/date calendar, and LumiBrite coating on the hands and markers for enhanced visibility in low-light conditions. Crafted of stainless steel with hairline and mirror finish, the sharply designed case has a low center of gravity for a comfortable fit and features a screwdown see-through caseback for a view of classic timekeeping in action, flowing seamlessly to a stainless steel bracelet with a tri-fold push button release clasp. 10 bar, 100M Water Resistant. Source
Owners manual (4R36):