Learning how to choose a watch starts with three labels on the product page, which are the strap material, the water resistance rating and the movement. Three listings, two from Titan and one from Seiko, show what the labels on a listing commit a buyer to in daily use.
The product pages were opened in November 2026. Availability of the Titan Karishma was unclear on that date.
Which strap material suits daily water exposure?
A retailer strap guide sets out how materials behave around water. It calls leather poor for water and says leather can absorb moisture, describes stainless steel as corrosion resistant, and says rubber and silicone suit swimming, with silicone easy to clean. Nylon is listed as water resistant, easy to clean and quick to dry.
Casio’s blog also notes that moisture affects straps and cases unevenly, so one rating cannot tell the whole story.
Both Titan watches state the same rating, so comparing them isolates the strap as the only variable in water exposure. Two Titan listings show the contrast. The 1585SL07 comes on a brown leather strap with a buckle, and the Karishma comes on a golden stainless steel strap. A buyer who washes hands often during the working day has the steel strap described as the better match for water, and the leather strap described as suited to dry wear.
What does a watch water resistance label mean?
Titan words 5 ATM on its product pages for splashes and rain but not for swimming or diving. On the 1585SL07 page the rating appears in the question and answer section and not in the specification table, so a buyer has to look for it.
Casio’s blog gives a similar reading in its own terms. A 5 bar watch copes with rain and a quick hand wash, a 10 bar watch can be worn in rivers and pools and on camping trips, and markings on a case include W.R. and WATER RESIST 10BAR.
A third party guide describes ISO 22810 as the standard for water resistant watches, tested with still pressure in a tank. The same guide says a rating is not a safe dive depth, and that description comes from the third party and not from the ISO page.
Seiko lists 10 bar for the 5 Sports, the higher of the two ratings among the three examples. The Titan watches state the lower one, so the examples cover one splash rating and one rating for rivers and pools in Casio’s wording.
Quartz and automatic movements
A third party guide describes a quartz watch as battery powered, driven by a crystal vibrating at 32,768 Hz. Standard quartz is accurate to roughly 10 to 20 seconds a month, and the battery needs replacing every few years.
Casio gives a model figure for comparison. The MTP-1302PD-9AV page states accuracy of 20 seconds a month, plus or minus.
An automatic watch winds itself through a rotor that moves with the wrist, according to the same guide. It needs wrist wear and stops after 1 to 3 days without it, and a manual wind watch needs winding every day.
Each label commits the owner to a routine. Quartz brings a battery change every few years, and an automatic brings regular wear or winding.
Seiko describes the 5 Sports as an automatic with manual winding and Calibre 4R36. Its listed duration is shorter than a two day weekend of 48 hours, so a watch worn Monday to Friday and left on a shelf may stop before Monday morning.
Warranty terms on the Titan pages
Titan states 24 months on the movement and 12 months on the battery on both the Karishma and the 1585SL07 pages. The same pattern appears on each listing, and by simple arithmetic the battery term is half the movement term.
Seiko’s page states no warranty. A buyer comparing the three has a stated term for two watches and none for the third.
Case size on the listings
Size differs across the three examples as well as the labels. The Titan 1585SL07 has a round metal case of 48.70 mm by 43 mm and is 9.20 mm thick, with mineral glass.
Titan lists the Karishma as a square metal case of 44.80 mm by 37 mm, 7.65 mm thick, also with mineral glass. Seiko lists the 5 Sports at 42.5 mm in a stainless steel case, with a thickness of 13.4 mm and Hardlex crystal.
By simple arithmetic on those figures, the Seiko is 5.75 mm thicker than the Karishma, although its diameter is smaller than either Titan case. A listing gives diameter and thickness separately, and the two do not move together.
Three worked examples from the listings
Each example answers the three labels differently. The 1585SL07 pairs a leather strap with a quartz movement, and its rating is placed in the question and answer section. Leather is not suited to water on the strap guide’s reading, so the strap and the rating pull in different directions.
The Karishma pairs a golden steel strap with a quartz movement and the same rating. The steel strap suits wet hands better than leather, though the rating is described as not for swimming or diving.
Seiko pairs a metal bracelet with an automatic movement and a higher rating. The automatic answers the movement label in a different way from the two quartz watches, and its listed duration is shorter than a weekend.
The Seiko page states no accuracy figure.