Hamilton Khaki Field King Day-Date 40mm Automatic Watch
How might this watch look on my wrist? A 3D representation of Hamilton Khaki Field King Day-Date 40mm Automatic Watch. Check retailer page for actual dimensions and specifications.
Scroll or drag to turn the wrist. Shown to scale on a typical men’s wrist (17.5 cm), lug to lug 48.7 mm (measured from the photo).
This 40mm field watch features Hamilton's in-house H-40 automatic movement, displaying the mechanism through a display caseback. The movement incorporates a Nivachron balance spring for superior resistance to magnetism, temperature fluctuations and shock, whilst delivering an 80-hour power reserve. A day-date window sits prominently at 12 o'clock, combining practical functionality with the tool watch aesthetic. The dial features applied Arabic numerals beneath a sapphire crystal, protected against scratches and maintaining optical clarity.
The brushed stainless steel case and matching bracelet present a refined take on Hamilton's military heritage. The bracelet incorporates an Easy Click adjustment system for secure sizing. Water resistance extends to 100 metres, suitable for everyday wear and incidental water exposure. This piece bridges the gap between authentic field watch utility and refined finishing for contemporary wrist wear.
The Hamilton Khaki Field King Day-Date 40mm Automatic Watch is listed on WatchShopper as a men's 40 mm stainless steel automatic watch with a day-date display and sapphire crystal. It runs on the H-40 calibre with an 80-hour power reserve and comes on a stainless steel bracelet. On 19 October 2026 the lowest UK price was £715.00 at TH Baker, in stock, with free delivery and 30-day returns. 3 UK retailers have it in stock, all at £715.00. With the voucher code GET50, Beaverbrooks brings it to £665.00.
WatchShopper has tracked the Hamilton Khaki Field King Day-Date 40mm Automatic Watch across 3 UK retailers for 20 days. In that time the lowest recorded price was £715.00 at Beaverbrooks on 29 September 2026, and the highest was £715.00 at Beaverbrooks. The average tracked price is £715.00.
| Lowest tracked price | £715.00 |
|---|---|
| Highest tracked price | £715.00 |
| Average tracked price | £715.00 |
| Current best price | £715.00 |
| Tracking since | 29 September 2026 |
At £715 this watch is on the cheaper side for a men's automatic watch with a 38–42 mm case: 38% of the 1,494 we track from every brand cost less. 33% of the 130 Hamilton watches we track cost less than this one. This is the 5th cheapest of the 7 versions of the King we list.
