If your cherished Seiko watch is starting to show some wear and tear, you may be thinking about having it repaired or serviced. After all, this would enhance its accuracy and keep the movement running more efficiently. But how much would it cost? Is it even worth it? And how do you go about having … Read more
The Seiko 6R15 automatic movement is a Japanese workhorse movement that can be seen as an affordable answer to the Swiss ETA 2824. Many watches from previous years contain the 6R15, including many Prospex models and some in the SARB and Presage lines. The 6R15 has 23 jewels, an accuracy rating of -15/+25 seconds, and … Read more
The Seiko NH36 movement is an unbranded version of their 4R36 movement, identical in accuracy, build, and performance. Seiko sells the NH36 to third parties instead of using it in their watches. The NH36 movement has 24 jewels, a 41-hour power reserve, 21,600 BPH, and an accuracy of -20 to +40 seconds per day. It … Read more
The Seiko caliber Seiko 4R34 GMT movement (also known as the 4R34A) is a new and affordable automatic GMT movement used in the Seiko 5 Sports GMT series. The NH34 is the nearly identical version of the movement that is sold to third parties. The 4R34 features an accuracy of +45 to -35 seconds per … Read more
The Seiko 4R36, released in 2011, is an upgrade from the brand’s older automatic movements, such as the popular 7S26. The 4R36 is used in many modern Seiko watches, including the new Seiko 5 Sports lineup. The 4R36 movement has an accuracy of -35 to +45 seconds per day, 21,600 vibrations per hour, 24 jewels, … Read more
