【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
[About clocks that synchronize time via radio waves]
The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful.
[Discontinued rare overseas model] Japanese quartz movement Windshield Hardlex crystal Reinforced waterproof for daily life (100m) Case material Stainless steel Case diameter 43cm Case thickness 10.7mm Belt material Leather Belt width 22mm Maximum arm circumference approx. 20.5cm Minimum approx. 13.5cm Weight approx. 78g Tachymeter Chronograph Stopwatch (1/5 second 24 hours) Alarm (one-time alarm (within 24 hours) Perpetual calendar (no need to adjust the end of the month date until February 28, 2100) Cannot be used for diving. Product specifications 1. Crystal vibration frequency: 32,768Hz (Hz = frequency of vibration per second) 2. Accuracy: Average monthly difference of ± 15 seconds (when worn on the wrist at temperatures between 5℃ and 35℃) 3. Operating temperature range -10℃ to +60℃ 4. Drive method: Step motor type: 4 pieces 5. Display contents [Time function] Hours, minutes, small second hand (1-second step movement) [Stopwatch function] [Stopwatch function]
Second hand (1/5 second step, 60 seconds/one revolution) Stopwatch minute hand (1 minute step, 60 minutes/one revolution) [Alarm function] Alarm minute hand (1 minute step, 60 minutes/one revolution) Alarm hour hand (linked to alarm minute hand, 24 hours/one revolution) [Calendar function] Calendar hand (usually displays the date, and displays the month and year when checking) Day hand (displays day of the week) 6. Battery used: Small silver oxide battery SB ─ AP (SR927SW): 1 piece 7. Battery life: Approximately 5 years (if used once a day when switching modes, using the stopwatch for 1 hour, and using the alarm for less than 20 seconds) 8. Comes with a battery life warning function 9. Electronic circuit oscillation, frequency division, drive circuit (C-MOS-IC): 1 piece We only handle new products that we import and keep in stock domestically. The Japanese instruction manual will be sent to you via email. clock
We will also send you a copy of the Japanese instruction manual. It is a simple package. Box is not included. SEIKO overseas models do not come with the original box when shipped from the manufacturer. You can rest assured that we will conduct a final driving test after setting the calendar time before shipping.