Size your wrist
Wrap a measuring tape around your wrist where you'd wear the watch. Under 6.5 inches → 36-40mm watches. 6.5-7.5 inches → 38-42mm. Over 7.5 inches → 42mm+. A watch too big for your wrist looks comical; a watch too small looks like a child's. This single check matters more than brand.
Quartz vs automatic
Quartz (battery-powered) is more accurate, cheaper, needs battery service every 2-3 years. Automatic winds with wrist motion, no battery, less accurate (loses ~15 sec/day), reads as more premium. Solar / Eco-Drive is quartz that charges from light — never needs a battery. For under ₹10,000, Seiko 5 is the only "real" automatic worth buying.
Strap matters more than dial
Steel bracelet → most versatile, formal-leaning, no maintenance. Leather strap → formal-dress focused, replace every 2 years in Indian humidity. Nylon / fabric → casual only. Don't buy a leather-strap watch as your only watch — you'll regret it in monsoon.
Where to buy in India
Amazon / Myntra — best prices, automated returns, watch out for grey-market sellers (no warranty). Helios / Ethos — brand-authorised multi-brand watch retailers, full warranty. Brand stores (Titan, Casio, Seiko) — confidence, full warranty, in-store try-on. Avoid: small kirana stores selling "imported" watches — usually fakes.