SEIKO (Seiko) 64's / Matic Weekdater (Matic Weekdater) / Cal.6206A

Introducing the 1964 Seiko "Matic Week-Date".

Introduced in 1960, Seiko Matic is one of Seiko's flagship automatic watch series.
In 1963, the "Week-Date" was introduced, displaying both the date and day of the week.
It featured a calendar function that allowed users to check the date and day of the week simultaneously and was developed from the early Cal.400 model.
In 1964, models equipped with the Cal.6206A were added, and this piece was manufactured that same year.

■Dial and Case Design

The center of the silver dial features a sunray finish, creating radial reflections depending on how the light hits it.
The outer minute track has a different finish, giving the dial a distinctive look.
The three-dimensional applied bar indices and angled dauphine hands catch the light, adding depth to the watch's refined appearance.

The calendar features a date window at 3 o'clock and a day-of-the-week window at 6 o'clock.
Unlike typical day-date models that display the day and date side by side, this design distributes the displays at the top and bottom of the dial.
By placing the day display at 6 o'clock, the calendar display is naturally integrated into the overall composition of the dial.
The three-dimensional window frames make each display stand out.

The rounded case is combined with sharp, angular lugs.
The stepped design from the bezel to the side of the case tightens the silhouette and adds character to the round case's understated appearance.
The crown is set within the case at 4 o'clock, giving the side of the case a clean look.

■Movement

The Cal.6206A is a 26-jewel automatic movement.
The mainspring is wound by the rotation of the rotor, and the date can be advanced quickly by operating the crown.
The day of the week is switched by advancing the hand, using a different operation method from the date.

It is equipped with Diashock shock protection, and the dial is also marked "DIASHOCK 26 JEWELS".
The rotor shown in the photo is engraved with "SEIKO 26 JEWELS", and its gold finish adds color to the movement's appearance.

■Styling

The case size is 43.3 mm (H) (including lugs) / 37 mm (W) (including crown) / 11.4 mm (T) / 48 g (including strap)

This piece features a subdued color scheme, combining a silver dial and stainless steel case with a black leather strap.
It pairs well with a navy jacket, white shirt, and charcoal gray trousers, highlighting the brightness of the dial.
Matching the strap and shoes in black will give the overall look a cohesive finish.

For a casual look, we also recommend pairing it with an Oxford shirt, beige chinos, or dark denim.
Because the day and date are positioned separately on the dial, it pairs well with simple, understated outfits, allowing the unique layout to stand out.

■Condition

■For Your Peace of Mind

All watches we sell undergo an internal inspection by a professional watchmaker upon arrival. We only sell items that we have determined to be authentic, so you can shop with confidence.

We will attach a new leather strap and deliver it to you when you purchase a watch.
Please select your preferred color from the order options tab.
※For watches with original straps or metal bands, the leather strap will not be attached but will be sent separately as a spare.
We will also include a dedicated watch case when shipping.

●Please be sure to read the following information after purchasing an antique watch●

At RESUME, when selling antique watches, we do not deliver them immediately upon order.
Instead, we request a professional watchmaker to perform an overhaul (hereinafter OH), and deliver the watch after the OH is complete. (The process takes approximately 1–2 months.)

A professional watchmaker with a first-class watch repair qualification will completely disassemble the watch, replace consumable parts such as internal gaskets, clean it, and lubricate it.
The watch will undergo a thorough OH and be adjusted to within approximately ±1 minute per day.
We will also include our store's original OH certificate, detailing the work performed, along with photos of the movement disassembled
and serviced.

Of course, due to the nature of pre-owned products, we cannot guarantee that they will never break. However, we provide this level of service so that you can enjoy the watch's original performance
and use it with peace of mind in the future. Thank you for your understanding.

Depending on the model, we offer a 1-year warranty at the time of purchase. Even after the warranty period has expired, we still offer repair services for a fee.
If you do not have a repair shop nearby, please feel free to contact us.