Best men's G-Shock watches

Start with the GW-M5610. It's the classic square G-Shock done right: solar charging, radio-controlled timekeeping, 200 m water resistance and a slim, light case that disappears under a cuff. Buy it once and forget the battery.

Who the others suit:

• GA-2100 (CasiOak) — the style pick: octagonal case, thin profile, wears like a dress watch.
• DW-5600 — the no-frills original square; cheapest way into the real thing.
• GMW-B5000 — full steel square with Bluetooth; the premium, heirloom-feeling one.
• GD-100 / GA-100 — big, bold, oversized digits for people who like a chunky watch.
• G-Squad GBD-800 — step tracking and phone link for gym days.
• AWGM100B — analog hands with atomic time, if you prefer a traditional face.