What's the difference between the DW-5610UU-3DR (olive) and the DW-5610UU-8DR (grey)?
Identical specs — same Module 3525, same bio-based resin, same two-piece bezel, same weight, same functions. The only difference is colour. The 3DR uses olive/army green with a dark navy inner bezel — a stronger contrast pairing that leans military and field-watch. The 8DR uses blue-grey with a charcoal inner bezel — a subtler tonal shift that leans urban and minimalist. Choose olive for earth-tone and workwear wardrobes; choose grey for neutral and gorpcore fits.
Is this the same as a DW-5600?
Almost. The DW-5610 is a variant of the DW-5600 with two differences: a two-piece bezel structure (separate inner and outer components instead of one piece) and bio-based resin for the case and band. Both run Module 3525 with identical functions, LED backlight, and 5-year battery life. The DW-5610 is a sustainability and serviceability upgrade over the DW-5600, not a feature upgrade.
How does this compare to the GM-5600UG-9DR (gold metal bezel)?
Same Module 3525, same functions. The GM-5600 adds a stainless steel bezel (gold ion-plated on the UG-9) over the resin case, weighing 73g vs 52g. The DW-5610UU is 21 grams lighter, uses bio-based resin, and costs $159 vs the GM-5600's $299. Choose the GM-5600 for metal presence and a dressier look; choose the DW-5610UU if you want the lightest, most eco-conscious 5600 available at the lowest price.
Does this watch have Bluetooth or fitness tracking?
No. Pure digital G-Shock with no Bluetooth, no step counter, and no smartphone connectivity. Time is set manually. For Bluetooth and fitness in a square G-Shock, look at the GBD-200. The DW-5610 is for people who want zero app maintenance and a 5-year set-and-forget battery.
What is bio-based resin?
Bio-based resin is made partly from renewable organic sources rather than entirely from petroleum. It performs identically to conventional resin in shock absorption, water resistance, and durability. The benefit is a reduced carbon footprint during manufacturing. No difference in feel or longevity.
Can I swim with this watch?
Yes. Rated to 200 metres (20 BAR), covering swimming, snorkelling, and recreational surface water sports. Not rated for scuba diving.
Is this a good first G-Shock?
Excellent choice. The 5600 square is the original G-Shock shape from 1983, and at $159 with a 5-year battery, 200m water resistance, bio-based resin, and an olive colourway that pairs with almost any earth-tone wardrobe, it's a low-risk, high-reward entry point into the range.
What warranty does this watch come with?
The DW-5610UU-3DR comes with Casio's official 1-year warranty when purchased from City Chain Singapore, an authorised Casio retailer.