Casio G-Shock DW-5600 Square vs Tag Heuer Aquaracer Professional 300

Casio's design language vs Tag Heuer's approach

The Casio G-Shock DW-5600 Square features a Resin case at 42.8mm (Square) with Mineral Glass protection. The Tag Heuer Aquaracer Professional 300 offers Stainless Steel construction at 43mm with Sapphire with Anti-Reflective Coating. Both represent their brand's distinct design philosophy and heritage.

Quartz Module 3229 vs Automatic Caliber 5

The G-Shock DW-5600 Square runs the Quartz Module 3229 (Casio Digital Quartz (Battery), 2-Year Battery power reserve) at standard frequency. The Aquaracer Professional 300 uses the Automatic Caliber 5 (Automatic (ETA 2824-2 / Sellita SW200 base), 38 Hours reserve) at 28,800 vph (4 Hz). The Aquaracer Professional 300 offers a longer power reserve.

42.8mm (Square) vs 43mm — different wrist presence

At 42.8mm (Square), the G-Shock DW-5600 Square wears more compactly on smaller wrists compared to the Aquaracer Professional 300 at 43mm. Water resistance differs: 200m (20 ATM) vs 300m (30 ATM).

Casio sits in the lower tier

The Casio G-Shock DW-5600 Square sits at $50–$100 and the Tag Heuer Aquaracer Professional 300 at $2,500–$5,000. On the specs that outlast any price: the G-Shock DW-5600 Square uses Mineral Glass with 2-Year Battery, against Sapphire with Anti-Reflective Coating and 38 Hours on the Aquaracer Professional 300. Service intervals are typically 5-7 years for both.

200m (20 ATM) vs 300m (30 ATM)

The G-Shock DW-5600 Square is rated to 200m (20 ATM) while the Aquaracer Professional 300 handles 300m (30 ATM). The Aquaracer Professional 300 offers superior water resistance.