TIMEX model 265

The TIMEX® Model 265 Movement

This section describes the Timex Model 265 movement, a 9¾ x 12¾ Ligne high frequency electric calendar movement. It features a second hour hand for simultaneously displaying time in two zones. The basic movement is similar to the Timex Model 253, with modifications to the minute wheel assembly, seconds wheel assembly, and dial rest to accommodate the second hour hand.

The calendar can be advanced or reversed through 24 hours for each date change. The time difference between the two hour hands is set by rotating the hands counterclockwise until the universal hand stops at the first hour mark, after which the actual time is set by rotating the hands clockwise.

The Timex code number, found on the edge of the dial, indicates the catalog number, movement number, and year of manufacture. Refer to Page 1.1 of the Timex Service Manual for detailed explanation.

Caution: The watch contains permanent magnets; do not attempt to demagnetize it.

The TIMEX® Model 265 Movement (exploded view)

The movement components are shown in an exploded view. Key parts include:

• DIAL REST (145)
• CENTER WHEEL ASS'Y. (206)
• HOUR WHEEL ASS'Y. (255/A)
• HOUR WHEEL DETENT WASHER (498/2)
• DIAL (751)
• HOUR HAND (850)
• MINUTE HAND (851)
• UNIVERSAL HAND (850/1)
• SWEEP SECOND HAND (852/1)
• DATE WHEEL ASS'Y. (2556)
• DATE RING (2557/1)
• DETENT SPRING (2576)

Disassembly of the Model 265 Movement

To begin disassembly, insert a blade into the opening notch on the bezel and pry the caseback off. The locating tab on the caseback aids in orienting it during re-assembly.

The energy cell should be replaced if its voltage is less than 1.5 volts or if it has been in service for over one year.

The movement cover is held in place by two tabs that snap into recesses in the bezel. Lift the cover off to expose the movement.

Disassembly of Movement Cont'd.

Stem Removal

The stem is secured by the stem bracket. To remove it, pull the stem outwards to the set position and maintain slight outward pressure. Use tweezers to push one side of the stem bracket aside, releasing one side of the stem. Continue pulling the stem outwards while using the tweezers to release the other side of the stem from the bracket. The stem will then detach from the movement and case.

Movement Removal

After the stem is removed, the movement can be accessed from the crystal side of the case. Use a crystal seating tool to remove the crystal, then lift out the reflector ring and the movement. Ensure the movement locating tabs align with the notches in the bezel plate during re-assembly.

Disassembly of Movement Cont'd.

Dial Removal

To remove the dial from the movement:

1. Remove the sweep second hand and minute hand.
2. Gently straighten the four tabs holding the dial to release it from the movement.
3. Turn the assembly over and lift off the dial assembly. Note the arrangement of parts beneath the dial, including the clutch mechanism responsible for setting the time difference between hour hands.
4. Lift off the components in order: Date Ring (the detent spring will move with it), Date Wheel Assembly, and Center Wheel Assembly.

Cleaning the Model 265 Movement

The basic movement (with hands, dial, etc., removed) is disassembled, cleaned, and lubricated as detailed in the Timex Service Manual (Pages 253.3 through 253.16).

Caution: Exercise extreme care when cleaning cases, dials, hands, and special rings, especially those with non-metal components. Standard watch cleaning solutions may damage paint, lacquer, and plastic finishes.

The Model 265 requires additional lubrication beyond the basic movement:

• Apply non-spreading watch oil (like Moebius Synt-a-lube, used in factory) to the center post and the post for the date wheel assembly.
• During reassembly, apply non-spreading watch oil to three teeth of the date ring and to the end of the detent spring where it engages the date ring.
• The dial rest is coated with a solid film lubricant and requires no further lubrication.

Reassembly of the Model 265 Movement

After the basic movement is cleaned, lubricated, and reassembled, proceed with the reassembly of the Model 265:

1. Insert the crown and stem assembly into the movement and push it in while rotating to engage the bracket.
2. Position the center wheel assembly on the center post, ensuring it engages with the pinion teeth.
3. Place the date wheel assembly onto the post, aligning the finger as shown in Figure F (Page 265.5).
4. If the detent spring has become loose during cleaning or handling, replace it in the dial rest.
5. Center the date ring on the dial rest. Use a tweezer point to deflect the detent spring to engage the date ring teeth. (Refer to lubrication notes in Paragraph B on Page 265.6).
6. Place the dial assembly onto the movement, ensuring the window aligns with the stem and the hour hand is positioned at 11 o'clock. The tabs should align with the slots in the dial plate.
7. Hold the dial in place, turn the assembly over, and bend the tabs to secure the dial.

Assembling Hands:

1. Turn the crown so the hands rotate counterclockwise. Verify the zone hand stops precisely on an hour mark. Then, turn the hands clockwise and check that the date begins to change at 12 o'clock.
2. Set the hour hand to the 12 o'clock position. Press the minute hand and second hand onto their respective staffs. Ensure the sweep second hand is positioned below the chamfer on the top of its staff.

Final Assembly:

1. Remove the crown and stem. Place the assembly into the bezel, ensuring the tabs in the bezel engage the slots in the dial plate.
2. Place the reflector ring on top of the dial and replace the crystal.
3. Insert the stem through the bezel and push it into the movement with a turning motion.
4. Replace the movement cover, insert the energy cell*, and reattach the back, making sure to align the locating tab with the notch in the bezel.
5. Push the crown into the run position. The watch should start immediately. If not, gentle finger agitation of the watch may be required to start it.

*Using an energy cell that does not meet Timex specifications may cause the watch to malfunction. Timex energy cells are available from local Timex retailers or authorized Timex watch service centers. Do not dispose of energy cells in fire.