Product Description The Seiko 5 Actus SS (Ref. 6106-7480) is a refined 1970s automatic watch that pairs a clean silver sunburst dial with sharp faceted bar indexes and slender baton hands for excellent legibility in any lighting. The rounded tonneau‑shaped stainless‑steel case and original folded‑link bracelet give it a balanced, period‑correct presence on the wrist, making it suitable for both business wear and relaxed everyday use. The framed day‑date window at 3 o’clock and applied Seiko 5 Actus and “SS 23 Jewels” logos complete a classic, minimalist design that remains timeless today. Historical and Collector Significance The 6106-7480 belongs to the Seiko 5 Actus SS line, a higher‑grade branch of the Seiko 5 family that combined the robust 61‑series automatic movements with more refined cases and dials aimed at young professionals in 1970s Japan. Powered by the 23‑jewel 6106 automatic caliber with hacking seconds and push‑button quickset day‑date, this model showcases Seiko’s focus on accuracy, durability, and everyday practicality during the brand’s golden era. Japan‑made examples with original SS bracelets and bilingual day wheels, like this reference, are particularly sought after by collectors of vintage Seiko for their build quality, smooth wearing comfort, and strong value as collectible daily wear pieces. ​ Watch Details Brand: Seiko Model: SEIKO 5 ACTUS Reference number: 6106-7480 Serial number: 330032 Movement: Automatic Day display: English and Japanese Case dimensions: Approx. 38 mm (excluding crown) Bracelet material: Stainless steel Wrist size adjustment: Adjustable from approximately 16.3 cm to 17.7 cm by adding or removing links and changing the micro-adjustment holes on the buckle. Currently set at 17 cm (center position). Condition Case: Scratches and scuff marks are present from normal use, but there are no noticeable deep scratches or stains (please refer to the photos). Bezel: Scratches and scuff marks are present, but there are no noticeable deep scratches or stains (please refer to the photos). Dial: There is no noticeable damage. Crystal: Minor scratches are present, but there are no noticeable deep scratches or stains (please refer to the photos). Bracelet: Minor scratches and scuff marks are present, but there are no noticeable deep scratches or significant stains (please refer to the photos). Crown and functions: Time setting: Pull out the crown to set the time. Date quick setting: With the crown in the normal position, lightly push it in to advance the date by one day. Day/date quick setting: With the crown in the normal position, firmly and deeply push it in to advance both the day and date by one day simultaneously. (For details, please refer to the calibre specifications below.) The automatic winding mechanism functions normally. ​ Accessories included: Watch only (no box or papers) Other notes: Made in Japan Shipping: Ships via EMS or FedEx international registered mail with tracking and insurance. Estimated delivery time to Europe is approximately 3–10 business days after shipment. ​ Calibre Specifications Movement: Seiko 6106 automatic Calendar: English/Japanese bilingual day-of-the-week + date display Quick-set method: Push-in crown (push-type quick-set) ​ Calendar operation (type where movement changes based on push depth): Date fast-forward: From the crown’s normal position, a shallow push advances only the date by one day. Date + day fast-forward: From the normal position, a deep, firm push advances both the date and day simultaneously by one step (days cycle in English → Japanese → English order). This two-stage push specification is typical for the 6106 series. ​ Important safety precautions: Avoid performing push-to-advance operations between 9:00 PM and 2:00 AM, as the calendar switching mechanism is active and may be damaged. When adjusting the calendar, it is recommended to first set the time to approximately 6:00. When pushing the crown, hold the case firmly and press the crown straight down, avoiding force at an angle. ​ Practical setting method (steps for actual use): First set the time to around 6:00 to avoid the 9:00 PM–2:00 AM window. With the crown in its normal position, lightly and shallowly push to advance only the date to the day before the target date (for example, if today is the 10th, advance the date to the 9th). From the normal position, perform full deep pushes to advance both the date and day of the week simultaneously, one step at a time, until the date reaches today. Stop the day display at either English or Japanese, whichever you prefer. Pull out the crown and rotate the hands while crossing midnight, keeping AM/PM in mind, to set the actual current time. The date will advance one day during this process, so use the “previous day setting + crossing midnight” method to ensure the final date is correct.