Watch Care & Ownership Guide
Day & Night Watch Co.
Watch Care &
Ownership Guide
You invested in something built to last. This guide makes sure it does. Everything you need to know about wearing, cleaning, storing, and caring for your Day & Night timepiece whether it's quartz or automatic.
Warranty
2 Years
Full coverage from date of purchase
Water Resistance
5 / 10 ATM
5 ATM Pharaoh · 10 ATM Sango 878
Crystal
Sapphire
Scratch-resistant. Highest clarity.
Case Material
316L SS
Surgical grade stainless steel
Section 01
Daily Wear
The Basics
A Day & Night watch is built for everyday life. Stainless steel construction, sapphire crystal, and quality finishing mean this is a watch designed to be worn not kept in a drawer.
That said, a few habits will keep it looking pristine for years. The biggest one: common sense. Your watch is tough, not indestructible. Treat it the way you treat anything you value.
Put It On Last, Take It Off First
When getting dressed, put your watch on after cologne, lotion, or sunscreen. Chemicals in these products can dull the finish and degrade seals over time. Same principle in reverse when you're done for the day.
Avoid Hard Impacts
Sapphire crystal is scratch-resistant, not shatterproof. A hard impact against a sharp surface can chip or crack it. Your watch can handle the desk, the gym, the outdoors. A concrete corner at the wrong angle is another story.
Switch Wrists When Needed
If you're doing heavy manual work, consider putting the watch away rather than wearing it through. A watch worn correctly will last decades. One dropped from a height or taken through heavy machinery may not.
Section 02
Cleaning Your
Watch
Regular light cleaning is the best thing you can do for your watch's long-term appearance. Sweat, skin oils, and everyday grime accumulate on the bracelet and case and over time, will dull the finish if left untreated.
The good news: keeping it clean takes less than five minutes.
Weekly Wipe-Down
Use a soft, lint-free cloth a microfiber cloth works perfectly to wipe down the case, crystal, and bracelet. Do this once a week and you'll rarely need a deep clean.
Deep Clean (Monthly)
Dampen a soft toothbrush with lukewarm water and a tiny drop of mild soap. Gently scrub between bracelet links and around the case edges where grime collects. Rinse with a damp cloth not running water unless confirmed water-resistant and dry thoroughly.
Never Use Chemicals
Avoid bleach, alcohol wipes, solvents, or household cleaners. They can strip the finish, damage seals, and discolor the dial. Mild soap and water is all you need.
Section 03
Storing Your
Watch
How you store your watch when it's off your wrist matters more than most people realize. The right environment protects both the finish and the movement.
Do
- Store in a watch box, pouch, or roll to protect from dust and scratches
- Keep in a cool, dry place away from direct sunlight
- Store flat or on a watch stand to prevent pressure on the crystal
- Use the original box if keeping long-term
Avoid
- Leaving on bathroom surfaces humidity degrades seals over time
- Storing near speakers or strong magnets (affects automatic movements)
- Stacking watches on top of each other without protection
- Leaving in a hot car extreme heat affects seals and batteries
Section 04
Water &
Your Watch
Water resistance ratings vary by collection. The Pharaoh Collection and The Queen Pharaoh Collection are rated at 5 ATM. The Sango 878 Collection is rated at 10 ATM. Here is what each rating means in everyday terms.
Safe
Rain, hand washing, accidental splashes, and light sweat are safe for all collections. At 10 ATM, The Sango 878 can also handle swimming and brief submersion in shallow water. The Pharaoh Collection and The Queen Pharaoh Collection at 5 ATM are safe for surface water contact but should not be submerged.
Not Safe
Hot tubs, saunas, diving, and high-pressure water activities are not recommended for either collection. For The Pharaoh Collection and The Queen Pharaoh Collection, avoid any submersion including showering. For The Sango 878, avoid diving or high-velocity water impact beyond casual swimming.
Important Note
Water resistance ratings degrade over time as seals age. If your watch has been exposed to water more than intended, or if the crown has been left unscrewed, have the seals checked by a watchmaker before assuming it's still water resistant.
Section 05 The Sango 878
Automatic-
Specific Care
The Sango 878 runs on the NH38A automatic movement. Because it's powered by your motion, it has a few unique ownership considerations.
Wear It Regularly
Consistent wear is what keeps an automatic running. 8–10 hours of regular daily movement is enough to maintain the mainspring fully wound. Daily wearers will rarely experience the watch stopping.
Restarting After Storage
If the power reserve (41 hours) has depleted, the watch will stop. To restart: hold the watch with the dial facing up and shake gently from side to side 20–30 times. Set the time, put it on, and it will wind itself back up over the next few hours of wear.
Expect Slight Variance
Automatic movements are accurate but not atomic. Expect a variance of roughly ±15 seconds per day this is normal, expected behavior for a mechanical movement. Reset once a week if precision is important to you.
Servicing Every 5–7 Years
An automatic movement benefits from periodic servicing cleaning, lubrication, and inspection of the movement. This is not urgent maintenance, but a well-serviced movement will outlast one that isn't. Seek a qualified watchmaker when the time comes.
Section 06 The Pharaoh & Queen Pharaoh Collections
Quartz-
Specific Care
The Pharaoh Collection and The Queen Pharaoh Collection run on the Japanese quartz movement. Quartz ownership is simpler than automatic, but has its own set of things worth knowing.
Battery Life Approximately 2 Years
The quartz battery typically lasts 1.5–2 years under normal use. When the second hand begins jumping in 2-second intervals instead of 1-second intervals, this is the low battery indicator. Have it replaced promptly a dead battery left in too long can corrode the movement.
Battery Replacement
Battery replacement is a simple, low-cost service. Any reputable jeweler or watchmaker can replace the battery in a few minutes. We recommend replacing the seals at the same time to maintain water resistance. Avoid watch kiosks that pop the case open carelessly caseback seals matter.
Storing a Quartz Long-Term
If you're putting the watch away for an extended period (months), remove the battery to prevent potential leakage. A fresh battery when you return is a small investment that protects the movement from corrosion damage.
Section 07
Setting Your
Complications
The quartz collections feature our Japanese quartz movement a multifunction movement with a Day subdial and an AM/PM (24-hour) subdial, plus a date window. Here is how to set each one correctly.
Pull Crown to Position 1 (One Click Out)
The first click out from the case sets the date and day subdial. Turn the crown clockwise to advance the date. Continue turning until the day indicator on the subdial reflects the correct day of the week.
Pull Crown to Position 2 (Two Clicks Out)
The second click sets the time hands. Turning the crown forward advances the time. Watch the AM/PM subdial as you set it will switch from AM to PM (and vice versa) as you pass 12 o'clock. Confirm it matches your current AM or PM before pushing the crown back in.
Push Crown Back In
Press the crown firmly back to the case. The movement is now sealed. Do not leave the crown in a pulled-out position this bypasses the crown seal and allows moisture ingress.
Pro Tip
Always set the time by moving hands forward (clockwise), never backward. Moving hands backward on a quartz movement with a date complication can misalign the date mechanism over time.
Section 08
Bracelet
Sizing
A well-fitting watch sits snugly on the wrist without pinching it should not slide down toward your hand or rotate loosely around your wrist. The two-finger test is the classic standard: you should be able to slide two fingers under the bracelet with mild resistance.
Day & Night bracelets use a standard link removal system. If your watch arrived with extra links, or if you need to add or remove links, any jeweler can do this in minutes. Keep removed links wrist size changes, and you may want them back.
Need a Resize?
If you're unsure how to size your bracelet, visit a local jeweler most will size a bracelet for free or a small fee. You can also contact us at [email protected] and we'll walk you through it.
Section 09
Long-Term
Servicing
A Day & Night watch is built to last far beyond the two-year warranty. With proper care and periodic servicing, your watch can be a lifelong companion and potentially something you pass down.
For quartz movements: battery replacement every 1.5–2 years, seal replacement with each battery change. For automatic movements: full service every 5–7 years from a qualified watchmaker.
If you ever experience irregular timekeeping, a stopped watch after normal wear, or visible moisture under the crystal contact us or take the watch to a watchmaker promptly. Catching issues early prevents larger problems.
Contact Day & Night Support
For warranty claims, service questions, or guidance on care reach out to us directly. [email protected] or call +1 940-440-7019. We stand behind every piece we make.
Time Is Discipline
