Introduction
The Rolex Datejust model 16000, powered by the caliber 3035 movement, was introduced in the late 1970s and produced until the late 1980s. It featured a 36mm stainless steel case, and a date function at 3 o’clock position.
Movement Details
The Rolex 3035 movement is a highly regarded automatic mechanical movement known for its reliability and precision. The Rolex 3035 was used in various Rolex models, including the Rolex Datejust and Rolex Submariner. The movement features a quick-set date function (previous Calibre generations such as the 1570 did not have this feature). It also incorporates a hacking feature, which stops the second hand when the crown is pulled out to set the time. The movement operates at a frequency of 28,800 beats per hour (BPH) and typically has a power reserve of around 48 hours. With its durable construction and solid craftsmanship, the Rolex 3035 movement has stood the test of time and remains a favorite among watch enthusiasts.
Servicing the Rolex 16000
This particular movement was in very good condition, and ran well after a full disassembly cleaning. The gaskets in the case however were extremely hardened indicating it had been some time since the last service (see picture below). A Rolex’s water-resistant status is only as good as the condition of the gaskets. When they become brittle the case is highly susceptible to water intrusion. These gaskets can start aging in as little as 3 years. Also note the water damage in the image of the case below. Years of moisture penetration between the bezel and the case has resulted in permanent damage to the stainless steel, and has caused the case to fail water resistant testing.
Please see our home page for information on getting your Rolex properly serviced.
