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May 15
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Seiko has continuously pushed the boundaries of watchmaking with its innovative movements, and the Seiko 4R36 is a prime example of their commitment to precision and reliability. Introduced as an upgrade to the popular 7S26 movement, the 4R36 offers enhanced features and improved accuracy, making it a sought-after choice among watch enthusiasts. In this blog, we will delve into the details of the Seiko 4R36, exploring its notable characteristics and why it has gained a dedicated following.

An Overview of the Seiko 4R36:

The Seiko 4R36 is an automatic mechanical movement developed by Seiko, known for its versatility and improved performance. It is often found in Seiko’s mid-range and higher-end timepieces, offering a compelling combination of accuracy and reliability.

  1. Key Features of the Seiko 4R36:

a. Automatic Movement: Like its predecessors, the 4R36 features an automatic winding mechanism, powered by the natural motion of the wearer’s wrist. This eliminates the need for manual winding or battery changes, ensuring a hassle-free ownership experience.

b. Enhanced Accuracy: The Seiko 4R36 movement operates at a frequency of 21,600 vibrations per hour (6 beats per second), providing improved accuracy compared to previous generations. It typically exhibits a daily variation of around -15 to +25 seconds, making it reliable for daily wear.

c. Hacking and Hand-Winding: The 4R36 movement incorporates both hacking and hand-winding capabilities. Hacking allows the seconds hand to stop when the crown is pulled out, facilitating precise time setting. Hand-winding enables manual winding of the watch, providing flexibility for those who prefer occasional winding over solely relying on wrist motion.

d. Day/Date Display: One of the standout features of the Seiko 4R36 is its day/date complication. Positioned at 3 o’clock on the dial, it provides added functionality and convenience.

e. Durability and Water Resistance: The Seiko 4R36 is designed to withstand the rigors of daily wear and various environmental conditions. It often features a robust stainless steel case, a scratch-resistant Hardlex crystal, and a water resistance rating of up to 100 meters (330 feet), making it suitable for water activities and everyday use.

Popularity and Collectibility:

The Seiko 4R36 has garnered popularity and a dedicated following among watch enthusiasts for several reasons:

a. Upgraded Features: The 4R36 movement offers significant improvements over its predecessors, including enhanced accuracy, hacking and hand-winding capabilities, and a day/date complication. These upgrades make it a compelling choice for those seeking a reliable and functional automatic movement.

b. Versatility: The 4R36 movement can be found in a wide range of Seiko watches, catering to various styles and preferences. It is often featured in dive watches, sports watches, and even dress watches, providing versatility for different occasions and lifestyles.

c. Modification Potential: As with other Seiko movements, the 4R36 has gained popularity among watch modders due to its robust construction and availability of aftermarket parts. Enthusiasts can customize the watch’s dial, hands, bezel, and strap, allowing for a personalized and unique timepiece.

d. Growing Collectibility: While not considered a vintage movement, early models featuring the 4R36 movement may become more sought after by collectors in the future. As interest in Seiko timepieces continues to grow, these early versions hold potential collectible value.


The Seiko 4R36 movement exemplifies Seiko’s dedication to creating accurate, reliable, and versatile

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