The Seiko caliber 4R36 is an automatic used by Seiko Watch Corp. in their own branded watches. This movement was released circa 2011. This caliber was considered to be an upgrade from the popular 7S36 movement as it offers the user the desirable hacking and hand-winding functionality. Differences Between 4R36 and 4R36A?

2022年12月7日 · 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, and a 40-hour power reserve , making it a …

2018年7月3日 · Can I improve the movement at all? The 4R36 movement has hours, minutes and seconds hands and is the only 4R3x family member to have the day and date displayed. The 4R36 beats at 21,600 bph and has 24 jewels to ensure its longevity. You can expect a 41 hour power reserve and no sub-dials.

2024年11月28日 · The 4r36 is a budget movement but even high end movements need to be serviced or break. And the recommended service interval is something like 3 years...but service intervals are mostly to cover their butts.

2025年2月2日 · The Seiko 4R36 is one of the most recent movements from the Japanese firm and is also one of the most commonly used in their watches currently. Called to be the successor of the legendary 7S36, the 4R36 is a technically more advanced caliber in terms of specifications but equally budget-friendly.

This website is the work of a watch enthusiast and a collector of Seiko and Grand Seiko timepieces, and it is not affiliated with Seiko in any way.

2024年4月18日 · This is a technical review of the Seiko 5 Sports Ref. SRPD77 and the caliber 4R36 that powers it. Giving the breakdown is master watchmaker Jordan P. Ficklin, who explains if the movement rate can be improved, and a way to straighten a misaligned chapter ring.

Seiko 4R caliber replacement movements. Seiko 4R calibers cannot be purchased, if you want to replace the movement in your 4RXX powered timepiece, then you will need to send your watch to Seiko Service, or purchase an NHXX movement to swap it out. Seiko 4R to NH Conversion

2019年10月23日 · Caliber 4R36 is an automatic movement with 24 jewels and beats at 21,600 beats per hour (6 times per second) which ensures over 40 hours of power reserve. It has a clockwise winding direction and includes Seiko Diashock anti-shock system and an ETACHRON regulator. The caliber 4R36 is basically a Seiko-only version of the caliber NH36.

2019年7月7日 · Seiko Cal. 4R36A is a mainstream automatic movement with day and date wheels. It is also offered by Time Module Inc. (TMI) as Cal. NH36A for use by other watch makers. It is closely related to the date-only Cal. 4R35 .