Ref. H38416111 · Chronograph
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links here are affiliate links. lug2lug may earn a commission at no extra cost to you. Disclosures
Hamilton
Hamilton's automatic chronograph caliber, based on the Valjoux/ETA 7750, running at 28,800 vph with the base 7750's power reserve of around 44 hours. It powers Hamilton chronographs such as the Intra-Matic Auto Chrono and Khaki Aviation lines (the separate H-21 caliber is the 60-hour extended-reserve version).
AI-detected from the product image
American Classic Intra-Matic Auto Chrono collection · 23 watches












7 colorways
The forum market
Browse forum listings and their asking prices. Market+ adds the weekly trend.
Hamilton on the secondhand market
Somewhere in +5.6% to +22.1%
29 matched watches
Chronographs as a group: +6.8% · 157 matched watches
Year-by-year readings →Owners widely praise the Hamilton American Classic Intra-Matic Auto Chrono for its attractive panda dial, retro design, and value, with many noting its historical significance and ability to garner compliments. Reviewers and owners alike highlight its clean, athletic aesthetic and vintage charm, with some finding it wears well and fits comfortably under dress shirts, even on smaller wrists. However, multiple sources flag its substantial thickness, ranging from 14.35mm to 14.7mm, and one owner noted the H-31 movement's rotor felt unusually spinny and the date-set button recessed. Accuracy figures vary, with one owner reporting +8 seconds per day and another +3 seconds per day. The included leather strap is frequently described as showing creasing easily or being merely utilitarian, leading some owners to explore aftermarket bracelet options.
On video
On real wrists
No shots yet. Show how it wears.
Related