The replica Aquatimer Deep Time is a copy of IWC's mechanical depth-gauge dive watch: a large steel or titanium case, an internal rotating bezel, and a dial with a second indicator that tracks your deepest point on a dive. Replica makers match the outside of the watch well. The depth gauge inside almost never works, and that is the single most important thing to know before you buy.
"Deep Time" is a seller keyword, not an official model name. Most listings use it for copies of the IWC Aquatimer Deep Two and the Aquatimer Deep Three, the two references that carry the mechanical depth gauge.
What are the original Aquatimer Deep Two and Deep Three?
IWC released the Aquatimer Deep Two in 2009 and the Aquatimer Deep Three in 2014. Both share one idea: a dive watch that shows your current depth and your maximum depth with no electronics and no battery.
- Case size: about 46 mm across, which wears large on most wrists.
- Case metal: titanium on the Deep Two, steel and titanium versions on the Deep Three.
- Depth scale: printed down the dial, with a red or orange hand for maximum depth.
- Bezel: internal, adjusted with a second crown near 4 o'clock.
- Strap: rubber with a pin or folding clasp, plus a bracelet option.
Water resistance on the originals sits at 100 meters or more. That number comes from the case construction, the gaskets, and the depth gauge membrane, not from the dial print.
How does the depth gauge work on the real watch?
A small opening in the case side lets water press on a membrane or piston. That pressure moves a lever train, and the lever drives a hand around the dial to show depth. A second hand holds at the deepest point so you can read it after you surface.
Replicas skip this. A working depth gauge needs tight tolerances, a sealed membrane, and a case that passes pressure testing. Most factories instead print a depth scale and fix a hand in place, or fit a pusher that does nothing at all.
What should you check on a replica Aquatimer Deep Time?
- Case shape and thickness. Copy cases run thick. Compare the listed thickness with the original spec.
- Depth hand position. If a seller claims the gauge works, ask for a video. A hand that moves when you press a pusher is not a depth gauge.
- Dial print. Look at the depth numbers, the logo, and the text under 12. Soft edges and wrong fonts show up first in photos.
- Bezel action. The inner bezel should turn with the lower crown and click through its detents.
- Lume. Charge the watch under a lamp, then check it in a dark room. Weak or patchy lume is common on budget copies.
- Crown threads. Unscrew and screw the crown a few times. Gritty threads lead to leaks and stripped tubes.
- Movement. Ask which movement is inside. Common choices are a Japanese automatic or a Chinese clone of a Swiss design.
Replica versus original: what you gain and lose
- Gain: the case shape, the dial layout, and the wrist presence at a fraction of the price.
- Lose: the working depth gauge, the pressure-tested case, and the service network.
- Lose: resale value. Copies hold little to none.
For most buyers the trade is simple. You want the look of a 46 mm tool watch with an internal bezel and a busy dial. You do not plan to dive with it. That is a fair use case for a copy.
What are the red flags in a listing?
Stock photos of the real watch, a price far below the market, and no caseback photo are three warning signs. A seller who refuses to send a live video of the actual unit is a fourth.
Claims of "1:1 Swiss made" on a depth-gauge watch deserve doubt. If the gauge worked and the case passed pressure testing, the price would sit at the top of the replica market instead of the middle.
What should a replica Aquatimer Deep Time cost?
Expect a wide spread rather than one number. Simple copies with a printed depth scale sit at the low end of the replica market. Copies with a Japanese or Swiss automatic movement, sapphire crystal, and better case finishing sit higher.
Anything sold as a fully working depth gauge at a low price is a mismatch between the claim and the price. That gap tells you more about the seller than any spec sheet.
Can you swim with a replica dive watch?
Do not swim with a replica dive watch unless a watchmaker has pressure tested it first. Factories seal cases to keep dust out, not to hold back water at depth. Even after a pressure test, the depth gauge opening on a copy is a weak point.
Hand washing and rain are fine for most copies. Pool water, salt water, and hot showers are not.
Strap and sizing notes
Most copies ship on a rubber strap with a tang buckle. Some originals use a quick-change strap system, and copies often drop it for standard spring bars. Check the lug width before you order a spare strap.
At 46 mm this is a big piece. On a 6.5 inch wrist it covers the full top of the arm. A 7.5 inch wrist and up wears it with room to spare.
Frequently asked questions
Does the depth gauge work on a replica Aquatimer Deep Time?
In most cases, no. The hand is fixed or decorative, and the pusher or membrane does nothing.
Which movement should you look for?
A Japanese automatic is the safest pick for daily wear. Chinese automatic movements cost less and do run, but parts and service are harder to find.
How do you spot a low-quality copy from photos?
Check the dial print, the gap between the bezel and the case, and the strap stitching. Soft text, wide gaps, and uneven stitching point to a cheap build.
Is the 46 mm case too big?
It wears large. Measure your wrist and compare with a watch you already own before you order.
Quick checklist before you buy
- Confirm which reference the seller is copying.
- Ask for live photos and a video of the actual unit.
- Ask for the movement name, not just "automatic".
- Read the return policy and the shipping terms.
- Book a pressure test with a local watchmaker if you plan to wear it near water.
Treat a replica Aquatimer Deep Time as a look-alike, not a dive tool. Buy it for the size, the dial, and the inner bezel. Choose a real depth-gauge watch if you need the function itself.