The Certina DS Action Diver 38mm Titanium is a compact automatic dive watch offered with black, blue or grey dials. Certina lists a 38 mm titanium case and bracelet, ceramic bezel, sapphire crystal and Powermatic 80.611 movement with a stated 80-hour power reserve. Its dimensions and materials make it a clear option to consider if you want a smaller-format diver, but comfort, accuracy and real-world dive performance cannot be judged from specifications alone.
What is the Certina DS Action Diver 38mm Titanium?
It is a 38 mm automatic diver-watch model family with three dial variants, each identified by its own reference number. Certina’s catalog includes the model in its selection of diver’s watches according to ISO 6425:2018. That is Certina’s published classification; the available product information does not establish an independent certification or a hands-on dive test.
The official product sheets list a titanium case and bracelet, ceramic bezel, and sapphire crystal with one-sided antireflection treatment. The bracelet has a quick-release system. These are manufacturer specifications, not observations from a physical review sample.
Black, blue and grey: which reference should you choose?
The official sheets describe the same core dimensions, materials and movement for all three versions. The distinguishing choice established here is the dial color and corresponding reference:
#1 Best Overall
- Case Size: 38 mm, Band Width: 13.00 mm, Case Thickness: 38.00 mm
- Automatic movement, Powermatic 80, Nivachron, Index dial type, Date
- Stainless steel bracelet, Double Locking Foldover Clasp
- Water-resistant up to 300 m / 990 ft: suitable for diving and/or snorkeling.
- 2 Year International Warranty
| Dial | Reference | Case width | Case height | Lug spacing |
|---|---|---|---|---|
| Black | C048.807.44.051.01 | 38 mm | 13.22 mm | 19 mm |
| Blue | C048.807.44.041.00 | 38 mm | 13.22 mm | 19 mm |
| Grey | C048.807.44.081.00 | 38 mm | 13.22 mm | 19 mm |
Certina’s product sheets list each reference with the same automatic Powermatic 80.611 movement, stated 80-hour power reserve, Nivachron balance spring, titanium case and bracelet, ceramic bezel, and sapphire crystal with one-sided antireflection treatment. They do not establish current prices or stock, which vary by market and retailer. Confirm the exact reference when comparing listings.
How big is the 38 mm model?
Certina publishes a 38 mm case width, 13.22 mm case height and 19 mm lug spacing for all three variants. These figures give a useful starting point for comparing it with watches you already own. They do not by themselves predict how the watch will sit on a particular wrist: no lug-to-lug measurement or first-hand fit assessment is established here.
Rank #2
- Case size: 40.50 mm: Band Width: 20.00 mm: Case Thickness: 14.10 mm
- Automatic , Powermatic 80, Nivachron, Date
- Band Type: Steel: Band Length: 179.64 mm
- Water-resistant up to 300 m / 990 ft: suitable for diving and/or snorkeling.
- 2 Year International Warranty
If you plan to change the bracelet, treat 19 mm as the stated lug spacing, not a guarantee that every strap will fit. The bracelet’s quick-release system is noted by Certina; check the replacement strap’s connector and fit for the exact watch.
What movement is inside, and what does the 80-hour reserve mean?
Certina specifies an automatic Powermatic 80.611 with a Nivachron balance spring and an 80-hour power reserve. The reserve is the manufacturer’s stated specification, not an independently measured result. The published information does not provide an accuracy test or a measured reserve for these watches.
Rank #3
- Case Size: 12.20 mm, Band Width: 38.00 mm, Case Thickness: 38.00 mm
- Swiss Automatic movement, Titanium case, DATE, Grey band
- Band Type : Titanium, Band Length: 175mm
- Water-resistant Diver's watch 300m according to ISO 6425:2018
- 2 Year International Warranty
Is it water resistant to 300 metres?
The official product-sheet information summarized here establishes Certina’s ISO 6425:2018 diver-watch catalog classification, but does not provide a water-resistance rating in the sheets. It is therefore not enough to confirm a 300 m rating. Check the current official page for the precise reference in your market for its stated water resistance and operating guidance before relying on it for swimming or diving.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is the Certina DS Action Diver Titanium worth buying?
It is worth considering if your priorities include a 38 mm case, titanium construction, a ceramic bezel, sapphire crystal and an automatic movement with a manufacturer-stated 80-hour reserve. Its three dial options offer a straightforward way to choose the look while keeping the listed core specifications consistent.
Rank #4
- Case Size: 38.00 mm, Band Width: 19, Case Thickness: 12.20 mm
- Automatic movement, Powermatic 80, Nivachron, Index dial type, Date
- Stainless steel bracelet, Double Locking Foldover Clasp
- Water-resistant up to 300 m / 990 ft: suitable for diving and/or snorkeling.
- 2 Year International Warranty
Whether it is good value depends on the price and ownership support available where you live. Compare the exact reference’s current local price, seller status, warranty terms and service access. The grey product sheet lists a two-year warranty, but warranty terms can vary by market; verify the terms locally rather than assuming the same coverage applies everywhere.
There is no basis here to rate wrist comfort, bezel action, legibility in use, lume, timekeeping accuracy or dive performance: those require hands-on or instrumented assessment. Certina’s official sheets provide the specifications, not independent test results.
Quick Recap
Best Value
- Case size: 40.00 mm: Band Width: 20.00 mm: Case Thickness: 11.20 mm
- Quartz , Precidrive
- Band Type: Steel: Band Length: 179.05 mm
- Water-resistant up to 300 m / 990 ft: suitable for diving and/or snorkeling.
- 2 Year International Warranty
Official sources
- Certina’s ISO 6425:2018 diver-watch catalog
- Certina product sheet: black, C048.807.44.051.01
- Certina product sheet: blue, C048.807.44.041.00
- Certina product sheet: grey, C048.807.44.081.00
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
