MARATHON WW194021 JDD Day or Date Automatic Watch User Manual

JDD ™ JUMBO DAY/DATE MANUAL
PART NO. WW194021

JUMBO DAY/DATE (JDD)

Marathon Search and Rescue (SAR) watches were developed to Canadian Government requirements for use in SAR operations. Built to withstand extreme conditions and match the capabilities of the user. First introduced in the early 1990s, they are still in active use today.
Commonly known as the Jumbo Day/Date (JDD). Featuring a bilingual day/date window that is available with options in English/French, English/Spanish, and English/Hebrew.

SPECIFICATIONS

TECHNICAL INFORMATION

TRITIUM GAS TUBES

The JDD uses self-contained tritium gas tubes to ensure constant visibility in low light situations. A gas tube is placed on each hour marker and hand. These tubes are self-illuminating and contain an isotope of hydrogen, that will not dull down over time like photo-luminescent paint.
CONSTANT ILLUMINATION

WATER RESISTANCE

The JDD is made from 316L surgical-grade stainless-steel with a screwdown crown and a synthetic sapphire crystal that allow it to operate while submerged down to 300 meters or 1000 feet underwater.
30 ATM – 300 M (1000 FT)

BILINGUAL DAY INDICATOR

The JDD is designed to display the day of the week in one of two languages. Once the desired language has been set, the selected language will automatically be maintained.
RAPID DAY DATE CORRECTION

SWISS CRAFTMANSHIP

Inside the JDD automatic is a Swiss-made, 26 jewels Sellita SW220 with Incabloc™ Shock Absorber. These watches are hand-assembled in La Chaux-de- Fonds, Switzerland and guarantee the highest level of craftsmanship and accuracy.
LA CHAUX-DE-FONDS, SWITZERLAND

GENERAL OPERATIONS & MAINTENANCE

1. Priming the movement.
   Your JDD is charged via the movement of your wrist. Out of the box, gently move your watch back and forth to charge up the movement. Avoid hand-winding where necessary, as this could cause damage to the movement.

2. Clean watch often.
   Clean regularly using rubbing alcohol, a toothbrush and a microfibre cloth.

3. Always set it forward.
   During events such as daylight-savings, you might be inclined to wind your watch back an hour, however this can put undue stress on the movement of your watch. Always move the hands forward to reach your desired time setting.

4. Service regularly.
   Regular servicing every four to six years will help to keep your movement running with Marathon-level precision. For servicing requests, contact our team directly at [email protected]

SETTING THE TIME

1. Unscrew and pull the crown from position 1 to position 4.
2. Turn the crown counter clockwise to adjust the time.
3. Ensure correct AM/PM settings so that the date wheel changes at midnight and not mid-day.

SETTING THE DAY & DATE

1. Unscrew and pull the crown from position 1 to position 3.
2. Turn the crown clockwise to change the date or counter-clockwise to change the day.

CAUTION: Do not adjust the date wheel between 9pm and 3am as this may damage the watch movement.![MARATHON WW194021 JDD Day or Date Automatic Watch

• fig 4](https://manuals.plus/wp-content/uploads/2023/06/MARATHON-WW194021 -JDD-Day-or-Date-Automatic-Watch-fig-4.jpg)

LOCKING THE CROWN

From position 2, push the crown into position 1 and rotate clockwise to lock the crown back into place.
NOTE: The JDD was designed to automatically hand-wind the watch while screwing in the crown. Avoid hand-winding where necessary as this could cause damage to the movement.

TIMING BEZEL

1. Rotate your bezel counter-clockwise and align the 12 o’clock bezel marker with the minute hand. This will set your start time.
2. Measure the minute hand against the bezel markers to count the elapsed time.

NOTE: When diving, use your dive watch as a support device alongside the recommended diving tools suggested by PADI or BSAC.

WARRANTY & SUPPORT

Every newly purchased Marathon Watch comes with an International warranty covering the timepiece for any manufacturing defects within the first two- years of its life.
Our expert team at [email protected] is dedicated to making sure your timepiece is running in tip-top shape.
Marathon Watch Company Ltd. warrants this item to be free from defects in material and workmanship under normal use in accordance with care and usage instructions for 2 years from date of purchase from an authorized distributor. This warranty excludes damage from misuse, abuse, or any irregular application. If we confirm a defect, we will repair or replace it with the same item or one of similar value and return it to you at no-charge.
Marathon Watch has remained family owned and operated since our founding in 1939. This watch has been hand assembled by our team with the utmost craftsmanship and care.

Mitchell Wein,
President

https://www.marathonwatch.com/apps /super-qr-codes/8818-1675704944.html

For detailed specs, reviews and additional information about the JDD watch, scan the QR code or visit our website online.
MAN-021-01

WWW.MARATHONWATCH.COM
@MARATHONWATCH
SWISS MADE.
CANADIAN DESIGNED.
NSN: 6645-21-886-8975

References

• Marathon Watch Company - Swiss Made Authentic Military Watches

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