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SPECIFICATIONS

1

Frequency of crystal oscillator

32,768 Hz (Hz = Hertz … Cycles per second)

2

Loss/gain (Monthly rate)

Less than 20 seconds when used on the wrist within

 

 

normal temperature range (5°C ~ 35°C) (41°F ~ 95°F)

3

Operational temperature range

–5°C ~ +50°C (23°F ~ 122°F)

4

Driving system

Step motor

5

Display system

 

 

Time

24-hour, hour, minute and second hands

 

Day

Indicated by day hand

 

Date

Indicated by date hand

6

Battery

SEIKO SR920SW, 1 piece

7

IC (Integrated Circuit)

C-MOS-IC, 1 piece

* The specifications are subject to change without prior notice for product improvement.

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Seiko 5Y66, 5Y67 manual Specifications

5Y66, 5Y67 specifications

The Seiko 5Y67 and 5Y66 are two noteworthy models within the renowned Seiko 5 series, which is celebrated for its reliable and affordable automatic watches. These models are widely appreciated by watch enthusiasts for their unique blend of practicality, style, and robust engineering.

One of the main features of the Seiko 5Y67 and 5Y66 is their automatic movement. Both models are powered by the reliable Seiko Caliber 5Y67 or 5Y66 movement, which provides excellent accuracy and durability. The automatic nature of these movements allows the watch to wind itself through the natural motion of the wearer's wrist, eliminating the need for manual winding or battery replacements. This is especially attractive to individuals who value eco-friendly and sustainable timepieces.

The design of these models reflects Seiko's commitment to functional aesthetics. Both the Seiko 5Y67 and 5Y66 offer a classic yet modern look, featuring a clear and legible dial with luminous hands and markers for readability in low-light conditions. The cases are typically constructed from stainless steel, ensuring durability and resistance to scratches.

Another notable characteristic of the Seiko 5Y67 and 5Y66 is their water resistance. These watches generally come with a water resistance rating of up to 100 meters, making them suitable for light swimming and daily wear. This feature adds to their versatility, catering to a wide range of activities from casual outings to more adventurous pursuits.

One of the highly regarded technologies in the Seiko 5 series is the incorporation of the "Day-Date" feature. This allows wearers to easily keep track of the date and day of the week, enhancing the practicality of the watch. The Seiko 5Y67 and 5Y66 typically showcase this feature prominently on the dial, further emphasizing their utilitarian design.

In summary, the Seiko 5Y67 and 5Y66 models stand out due to their dependable automatic movement, stylish and functional design, decent water resistance, and valuable day-date feature. These characteristics make the watches a phenomenal choice for anyone seeking a reliable timepiece that combines traditional craftsmanship with modern functionality. Whether for daily wear or special occasions, these models exemplify Seiko's dedication to quality and precision in the world of horology.