SEIKO (Seiko) 63's / Matic Self Dater (Matic Self Dater) / Cal.394

Introducing the 1963 Seiko "Seikomatic Self-Data".

Around 1960, Seiko launched "Seikomatic" as a series of automatic wristwatches.
Contemporary sales materials described it as a "new luxury slim automatic," indicating that it was positioned near the top of Seiko's automatic lineup.

Early Seikomatic models displayed only the time, followed by the "Self-Data" with a date display and the "Week-Data" with both day and date displays.
Seikomatic was a series that offered models with different display functions based on automatic movements.

■ Dial and Case Design

The silver dial features sunray finishing with fine lines radiating from the center to the outer edge.
The brightness changes depending on the angle of the light, giving the clean color a distinctive character.
Furthermore, thin lines divide the dial horizontally and vertically, and overlapping with the sunray finishing, the eye is drawn from the center to each hour marker.

The three-dimensional gold-colored bar indices provide clear markings on the dial while creating a sense of unity with the color of the hands and case.
The hour and minute hands are dauphine-shaped, tapering toward the tips.
The faceted surfaces catch the light, making the time easy to read on the silver dial.
The date window at the 3 o'clock position is surrounded by a black outer frame and a stepped border, serving as an accent on the dial.

The case is round and gold-colored.
The bezel is stepped, creating a contoured transition from the edge of the crystal to the side of the case.
The lugs extend outward from the case and taper toward the tips.
The straight design with flat surfaces adds a sharp impression to the round case.
While the overall design is finished in gold, the combination with the silver dial creates a clean look amidst the elegance.

■Movement

Cal.394 is an automatic movement equipped with 24 jewels. The balance wheel vibrates at 18,000 beats per hour.
The slow-moving low-beat seconds hand is also a characteristic feature of mechanical watches from this era.
Pulling the crown out one click allows you to advance the date.

"Diashock," also marked on the dial, is a shock-resistant structure designed to protect the balance staff, which is susceptible to impact.
The rotor is engraved with "SEIKOMATIC," "SEIKOSHA," and "24 JEWELS," and the movement is also marked with the model name and jewel count.

■Styling

The case size is 42.8mm in height (including lugs) / 36.2mm in width (including crown) / 12.1mm in thickness / 42g in weight (including strap)

The classic design with a gold-colored case and silver dial pairs well with jacket styles.
Pairing it with a white shirt, navy jacket, and slacks, a black leather strap will sharpen the wrist and create a refined impression.

On the other hand, it is also easy to pair with American casual styles such as denim jackets, chambray shirts, and chinos.
The gold-colored case serves as an accent among the rough materials, adding just the right amount of elegance to casual outfits.
It can be incorporated into both polished and casual styles, allowing you to enjoy a wide range of styling options.

■Condition

■To Ensure a Worry-Free Purchase

All watches we handle undergo an internal inspection by a professional watchmaker upon arrival, and we only sell them after confirming they are genuine, so you can use them with peace of mind.

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

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

At RESUME, when selling antique watches, we do not hand them over immediately upon your order.
We request a professional watchmaker to perform an overhaul (hereinafter OH), and deliver the watch after the OH is completed. (The period is approximately 1–2 months.)
A professional watchmaker with a first-class watch repair technician qualification will completely disassemble the watch, replace consumable parts such as internal gaskets, and perform a thorough OH including cleaning and oiling,
adjusting it to a condition of approximately ±1 minute per day.
We will also send our store's original OH certificate, along with photos of the movement disassembled
and serviced, so you can see what kind of work was performed during the OH.

Of course, due to the nature of the product being used, there is no guarantee that it will never break, but we provide this level of service so that you can enjoy the original performance of the watch
and use it with peace of mind in the future, so please understand.

At the time of purchase, we offer a 1-year warranty period depending on the model. Even for products past the warranty period, we will properly accept repair requests for a fee.
Even if you do not have a repair shop nearby, please feel free to contact us.