Tide Clock Movement (17mm Shaft)

Tide Clock Movement With Fittings

This quartz tide clock movement features a specialised mechanism designed to track tidal movements which happen on average twice a day. Tide clocks or “indicators” show how much time remaining before high and low tide, based on a lunar day. The lunar day, or time it takes the moon to reappear at the same place in the sky, is 24 hours and 50 minutes. Tide indicators do not go around a standard clock over the course of 24 hours, but rather in 12 hours 25 minutes and 14 seconds (or twice daily). This odd length of time corresponds to the average time between 2 high tides and 2 low tides, in zones where tides are mostly regular.

The movement has a total shaft length of 17mm and is compatible with tide clocks that have a maximum dial thickness of 6mm.

Please read the full description below carefully to ensure this tide clock movement is the right fit for your project before making a purchase.

Important note: We cannot guarantee compatibility between your existing hands and our movements. To avoid any issues, be sure to gather accurate hand hole measurements, and verify that they match the exact specifications outlined in this description. Please read the entire description thoroughly to ensure all measurements will work with this movement.

Included:

1 x tide clock movement (17mm shaft length, suits clocks with a maximum dial thickness of 6mm)

Hand shaft is 17mm in length

Brass threaded section is 8mm

Requires a dial hole with a minimum of 12mm

Euroshaft fit (Hour hand pushes on, minute hand fits onto a slotted rectangular shaft and is held on by a small nut)

Movement measures 56 x 56 x 16mm (not including shaft length)

Material: ABS plastic

Requires 1 x AA Alkaline battery (or LR6 Alkaline), not included

We recommend changing your movement battery once a year using a high quality alkaline battery, such as Duracell or Panasonic. 

Hand Hole Dimensions (Collet)

Hour hand hole bush diameter: 5mm
Minute hand hole is slotted 4mm dia slotted is 3mm

Hand nut thread is metric 4mm with pitch of 0.5mm
Locking Nut Thread is metric 10mm with pitch of 0.75mm

The Importance Of Getting Correct Measurements

In order to find a correct replacement, you will first need to gather a few measurements and information from your current movement. A model number alone does not provide enough information to replace a movement- you will also need to determine the following:

1. Type of movement/hands you are replacing (press fit, euroshaft or high torque)

Your current minute hand will be able to easily indicate what type of movement you have. Simply examine the hole in your minute hand. 

• If it is round or has a hexagonal looking eyelet, and if the hand pushes onto the shaft then your movement is a press fit movement
• If the hole has two straight sides and a rounded top and bottom, then your movement is a euroshaft movement
• If your minute hand is over 160mm in length then we strongly recommend that you use a high torque movement

Please note, your minute hand hole should be visible. If there is anything protruding from your original minute hand then you may have removed the minute shaft with the hand by accident. To separate this shaft from the minute hand you will need to unscrew the hand nut on the front of the hand.

2. Hand Hole Dimensions (Shaft Diameter Of Hands)

As the shaft diameter for all hands varies significantly, your original hands may not be compatible with the replacement movement that you select. It is important that you measure the hand hole dimensions to confirm whether it is a match. If not, you can order replacement hands that will be compatible with your replacement movement. In addition, the total length of the hands are measured from the centre of the hole to the tip, not from end to end.

3. Total Shaft Length Of Your Current Movement

Measure the total shaft length of your old movement by measuring from the face of the movement to the very end of the shaft. This measurement is the entire shaft length when the movement has been removed from the clock. It is important to get accurate measurements especially if your clock had a lens. We also recommend measuring your dial thickness to ensure the replacement movement will be a suitable fit.

4. Follow Our Guide

For more detailed information on how to get these measurements, we have created an easy to follow guide (with pictures) and an additional video link which you can view here: Step-By-Step DIY Clock Movement Replacement Guide

Please note, it is very important that you have gathered this information correctly prior to purchasing. 

Disclaimer: The information provided serves as a guide only and may not be specific or true for every type of clock. Clock Shop is not responsible for any alterations or damages which may be made from the information provided, and customer discretion is always advised.