Seiko Prospex Speedtimer 42mm Chronograph Automatic Men's Watch
This 42mm stainless steel chronograph features Seiko's Calibre 8R48 automatic movement with manual winding capability and a 45 hour power reserve. The watch sits comfortably between sporty and refined, with a black dial adorned with Lumibrite applied to both hands and hour markers. A date window sits at the 4-5 o'clock position, whilst the dual-curved sapphire crystal carries anti-reflective coating on its inner surface for improved readability.
Water resistance reaches 100 metres, making it suitable for swimming and snorkelling. The watch arrives mounted on a stainless steel bracelet secured by a three-fold clasp with push button release, ensuring secure fastening during daily wear. The chronograph functionality and robust case construction position this as a capable tool watch for those seeking practical timing capability with classical design sensibilities.
The Seiko Prospex Speedtimer 42mm Chronograph Automatic Men's Watch is listed on WatchShopper as a men's 42 mm stainless steel automatic chronograph with a black dial, a date display, sapphire crystal, and 100 m water resistance. It runs on the 8R48 calibre with a 45-hour power reserve and comes on a stainless steel bracelet. On 22 October 2026 the lowest UK price was £2,500.00 at Beaverbrooks, in stock, with free delivery and 30-day returns. With the voucher code GET50, Beaverbrooks brings it to £2,450.00.
At £2,500 this watch is mid-priced for a men's automatic watch with a 40–44 mm case: 57% of the 1,381 we track from every brand cost less. 97% of the 330 Seiko watches we track cost less than this one. This is the 59th cheapest of the 65 versions of the Prospex we list.
