The MOSSA Watch Guide: Maintenance & Movements

Essential Watch Maintenance

To keep your precision timepiece running flawlessly, it requires regular upkeep. Internal lubricants age and parts wear down over time, which can compromise both timekeeping and water protection.

Service Recommendation: Have your timepiece inspected, lubricated, and tested at an authorized service center every 2 to 3 years.

Daily Care by Strap Type

Never clean your watch with harsh chemical agents like bleach or peroxide, as they will cause permanent discoloration. Instead, wipe down your watch daily with a soft cloth to remove skin oils and sweat.

Strap Material	Preservation & Cleaning Method
Stainless Steel, Alloy & Titanium	Shield the watch case with wrap. Use a soft toothbrush with mild, soapy water to scrub the links, rinse gently, and dry immediately.
Genuine Leather	Highly vulnerable to liquid, sweat, and sunlight. Do not wear in water. Air-dry in a well-ventilated room away from direct sun to prevent cracking and fading.
Rubber & Silicone	Rinse off dirt with clean water and dry thoroughly. Periodically twist the crown to keep internal gaskets flexible and prevent seizing.

Water Resistance Safeguards

Moisture damage is rarely covered by warranties. Protect your watch's internal chamber by following these strict protocols:

• Never adjust or pull out the setting crown while the watch is wet or underwater.

• Avoid exposing the watch to direct faucet pressure, even if the crown is screwed down tight.

• Keep away from hot tubs, steam rooms, and saunas. High heat and soap melt away protective waterproof seals.

• Always rinse the watch in fresh water immediately after ocean swimming to remove destructive salt crystals.

Understanding Movements & Chronographs

The "movement" is the internal mechanical heart of your watch. The style of movement dictates how your watch is powered and how the hands move.

1. Quartz Movements

• How it works: Powered by a small battery that sends an electric current through a tiny quartz crystal, causing it to vibrate at a precise frequency.

• Key traits: The most affordable and highly accurate option. Requires a battery replacement every 1 to 3 years.

• Visual cue: The second hand moves with a distinct, ticking stop-and-start motion.

2. Automatic & Mechanical Movements

• Mechanical: Powered by a manually wound mainspring. Requires daily hand-winding to keep the internal gears oscillating.

• Automatic: Self-winding. A weighted internal rotor spins with the natural motion of your wrist to wind the mainspring automatically.

• Key traits: Prized for traditional craftsmanship. If left unworn, an automatic watch will stop running within 10 to 72 hours depending on its power reserve.

• Visual cue: The second hand glides across the dial in a fluid, continuous sweep.

What is a Chronograph?

A chronograph is a specialized timepiece equipped with a built-in stopwatch mechanism. It is easily identified by two push-buttons flanking the main crown, which start, stop, and reset the stopwatch hands.

• Subdials: The smaller miniature dials track elapsed minutes, hours, or fractions of a second.

• The Rule: A watch can have multiple small dials tracking the day or date, but it is only classified as a chronograph if it features an independent stopwatch function