UNION GLASHÜTTE/SA UNG-27.S2

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TECHNICAL SPECIFICATIONS

• Mechanical movement chronograph UNG-27.S2 with

automatic winding and date corrector at 10 o’clock

• Number of jewels: 29

• 28,800 vibrations/hour

• Power reserve: Approx 65 hours

DISPLAY / FUNCTIONS

1 Hour hand

2 Minute hand

3 Small seconds hand

4 Date indicator

5 Corrector (rapid date correction)

6 Central 60 seconds hand (chronograph)

7 30 minute counter (chronograph)

8 Start/Stop push-button (chronograph)

9 Reset push-button (chronograph)

10 2 position crown*

I Rest and winding position

II Time setting position, with stop second

and midnight date and day chang

* In models from the „Sport“ series, the crown is also screwed to the

case to ensure increased water resistance. To operate the crown, turn it

counterclockwise until it pops out clearly through the built-in spring. To

screw the crown back on, press it slightly towards the case and turn it

clockwise until it stops. Do not operate the crown under water.

UNG-27.S2

USER’S MANUAL

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UNG-27.S2_E / 2023

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Summary

Technical Specifications

Display and Functions

Crown Positions and Operations

Details the two positions of the crown: rest/winding and time setting with stop second and date change.

Watch Usage Instructions

Winding the Watch

Instructions for manual winding and the automatic winding mechanism, noting no stop at full wind.

Setting the Time

Procedure for setting the time, stopping the seconds hand, and noting date change at midnight.

Synchronizing the Watch

Guidance on synchronizing the seconds hand with an official time signal by pulling out the crown.

Chronograph and Date Functions

Rapid Date Correction

How to advance the date using the corrector, with a note on the impossible correction period.

Chronograph Operation

Instructions for starting, stopping, and resetting the chronograph function using push-buttons.

Care and Maintenance

Cleaning and Protection

Advice on regular cleaning, avoiding extreme conditions, and recommended servicing intervals.

Water Resistance Precautions

Information on maintaining water resistance, potential loss after shock, and checks during servicing.