What are the best men's dress watches for formal events?

The Calatrava 5227G-001 is a 39 mm white-gold dress watch with an ivory dial, alligator strap, and a hunter-style dust cover over a sapphire caseback revealing an automatic movement. It suits buyers seeking a classic, elegant everyday dress watch with a date function and high-quality finishing.

Classic 37.3 mm dress watch with a hand-wound Grand Seiko 9S64 movement, 72-hour power reserve, and a cream/beige dial paired with a crocodile leather strap. Suited for buyers seeking a high-quality, understated mechanical dress watch with superb finishing and a sapphire crystal.

Classic Tank Louis in 18k yellow gold with a silver/white Roman dial, quartz movement, sapphire crystal and alligator leather strap. Dress watch proportions (about 25.5 mm wide) suited for someone seeking an elegant, traditional luxury timepiece.

Classic 39 mm ultra-thin automatic dress watch with moon-phase and date, sapphire crystal and alligator strap. Suits someone seeking a refined, slim complication for formal or daily wear.

The Patek Philippe Calatrava 5227J-001 is a 39 mm 18k yellow-gold dress watch with an ivory lacquered dial, date window, and a hinged dust-cover over a sapphire caseback. It's powered by the self-winding caliber 26‑330 S C and suits collectors or buyers seeking a classic, understated luxury dress watch.

The SRPB43J1 is a 40.5 mm Presage Cocktail Time with a sunburst light-blue/silver dial, domed box-shaped Hardlex crystal, automatic Seiko 4R35 movement and leather strap. It's a dressy, eye-catching watch suited for someone wanting an affordable mechanical dress watch with vintage-inspired styling.

Slim automatic dress watch with moonphase and date, stainless steel case and leather strap; suited to someone seeking a refined, classic small-diameter timepiece.

The Saxonia Thin 211.027 is an ultra-thin, time-only dress watch in 18-carat white gold with a 40 mm case and a 5.9 mm height, powered by the hand-wound L093.1 movement with a 72-hour power reserve. It features a silver (argenté) solid-silver dial and an alligator leather strap, suited for collectors seeking a refined, minimalist luxury dress watch.

The Tank Louis Cartier W1529756 is a rectangular 18k yellow gold dress watch with a 25.0 mm case, silver dial, sapphire crystal, and a black alligator leather strap. It uses a quartz movement and is suited for someone seeking a classic, low-maintenance luxury dress watch.

The Rolex Cellini Time 50509 is a 39 mm white gold dress watch with a domed sapphire crystal, leather strap, and automatic Rolex Caliber 3132 movement. It offers classic, elegant styling for formal wear and users who prefer a refined, time-only wristwatch.