How can I adjust the display contrast on my

Suunto Core?

To change the contrast on the Suunto Core you need to put it in sleep mode. Note that this erases

unlocked logs!

1. Press [START/STOP], [VIEW], [+] and [LIGHT] buttons simultaneously until SUUNTO

appears on the display.

2. When the display is blank press [MODE] until the watch wakes and shows SUUNTO.

3. While 'SUUNTO' is displayed, press [START/STOP] until the service menu opens.

4. Press [+] or [LIGHT] to scroll to Contrast and then press [MODE].

5. Change the contrast using the [+] or [LIGHT].

6. Press [VIEW] to exit.

What is the average battery life for Suunto

Core?

The average battery life for the Suunto Core is 12-18 months depending on usage. Features like

the compass and backlight consume more power than other features, so using them frequently or

for extended periods decrease battery life.

When the low-battery warning symbol appears on the display, 5 - 15% of battery capacity still

remains.

Change the battery of your watch For changing the battery, send your watch to an authorized Suunto representative for service.

When should I calibrate the compass of my

Suunto Core?

The compass in Suunto Core automatically calibrates itself as you use it, but it may need to be

calibrated manually in the following circumstances:

The battery has been changed. The service menu has been accessed. The watch has been near a large amount of metal (e.g. in an airplane). The watch as been near a magnet or a strong electro-magnetic field.

The compass has not been used for a long time.

To calibrate the compass, enter compass mode. While hold the watch level, and start slowly

rotating it. 3-4 full rotations should normally be enough to calibrate the compass. If the watch

has been near a magnet/magnetic field, you may need to rotate it a few more times. Keep rotating

compass reading appears.

NOTE: The compass deactivates after 60 seconds. This is a power saving feature. Press the

Start/Stop button to reactivate the compass.

How can I lock the buttons on the Suunto

Core?

You can activate and deactivate the button lock by keeping [-Light] pressed. When the button

lock is activated, it is indicated by a lock icon on the display.

How do I change the straps of my Suunto

watch?

Find step-by-step instructions and how-to videos on how to change the strap of your Suunto

watch. Please find the exact name of your product at the back of the device.

If your watch is not listed, please visit a Suunto Service Center to get your strap changed.

Find suitable accessory and spare part straps for your device by filtering or searching by product

name on our Accessory & Spare part page. And read more about which Suunto products are

compatible with accessory straps with quick release mechanism.

Please be aware, device damage that happens during an unauthorized strap change is not covered

by Suunto International Limited Warranty.

Instructions for Suunto watches with quick release mechanism

Applies for:

Suunto 3 Fitness Suunto 9 Spartan Sport Wrist HR Baro

Spartan Sport Wrist HR color edition Copper, Gold and Forest

Tools needed: None. Straps with quick release mechanism are easy to change without any

additional tools.

To detach a strap from the watch body:

1. Turn the watch upside down. 2. Pull the small pin of the spring bar towards the middle of the strap to release the spring from its

socket. 3. Remove the strap.

To attach a new strap to the watch:

1. Insert the pin on the opposite end of the spring mechanism into its socket on the watch body. 2. Pull the pin towards the middle of the strap to retract the free end of the spring bar. 3. Slip the strap into place and release the pin.

Ensure the strap is in place by checking that the pin goes all the way in to the pin hole and by

pulling the strap gently.

Instructions for Spartan watches

Applies for:

Spartan Sport Spartan Sport Wrist HR color edition Blue, Black and Sakura Spartan Suomi 100 limited edition

Strap: Integrated with 1.5 mm spring bar

Tools needed: Basic watch repair kit.

Note: The strap cannot be detached easily from the watch body without the appropriate tools. To

avoid possible injuries or damage to the product, we recommend visiting a local Suunto Service

Center or a close-by watch store.

To detach a strap from the watch body:

1. Turn the watch upside down. 2. Locate the small spring bar openings.

3. Slide the fork end of the spring bar tool between the strap and lug and pry the spring bar from the side facing the watch case towards the centerline of the strap.

4. Gently push the strap towards you with your other hand to free the spring bar from the hole. 5. Remove the strap.

To attach a new integrated strap:

1. Insert one spring bar end into one lug hole on the watch. 2. Hold the other spring bar end against the opposite lug, approximately in the place where the

hole is. 3. Pry the spring bar with the flat side of the spring bar tool against the strap until the end of the

spring bar slides down inside the lug.

Ensure the strap is in place by pulling the strap gently.

Note: The above listed Spartan watch models are compatible with free rotating quick release

straps with 24mm width. Find suitable accessory straps with quick release mechanism by

filtering or searching by product name on our Accessory & Spare part page. Quick release straps

are attached as described above in section “Instructions for Suunto watches with quick release

mechanism”.

Where do I find the serial number of my

Suunto product?

All Suunto watches and dive computers have a serial number. The serial number is a

combination of 6, 8, 10 or 12 numbers without spaces or dashes.

Examples:

123456 12345678 1234567891 12345678910

Depending on your product and its generation, there are several locations where you can find the

serial number of your product:

1) On the back of your device

In most cases, you will find the serial number printed externally at the back of the device

module. Possible locations are:

Upper area of the device module: This may apply for e.g. Spartan Sport WHR and Suunto 9.

Lower area of the device module: This may apply for e.g. Suunto 3 Fitness, Suunto 5, Spartan Trainer, Spartan Ultra and Ambit3 Peak.

Product information gauge surrounding the product name: Usually it is the first number on the right side of the gauge. This may apply for e.g. Suunto Ambit3 Vertical, Suunto Traverse and Traverse Alpha.

Middle area of the device module: This may apply for e.g. Suunto Elementum Terra and Suunto EON Core.

In some cases, the serial number may be surrounded by a box. This may apply for e.g. Suunto

Ambit3 Peak and Sport, Ambit 2 R Suunto Spartan watches, Suunto 9.

2) On the sleeve of the product box

The serial number is added on a sticker to the product box sleeve as one of the last steps when

packaging your product.

Usually all information on the box sleeve is printed directly on the sleeve, only the serial number

is added as sticker.

In addition to the serial number, you will find several other numbers externally printed on your

Suunto device and the product box which are NOT the serial number:

Sales item code: SS050209000 Product name: Suunto 3 Fitness Copper Device model ID: OW175 Radio certifications: IC:5175A-2478 and FCC ID:RYP2478 Water-resistance marking e.g. 100M-300FT-10BAR

3) In the Settings menu of your watch

In Spartan Collection watches, Suunto 9 and Suunto 3 Fitness you can find the serial number in

the watch under Settings > General > About > Serial number.