115 current Hamilton references measure 38 mm or less. We rank them on published specs; the size table shows lug-to-lug where Hamilton lists it.
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How we picked
Each watch earns points from published specs only: sapphire crystal (2), water resistance of 200 m or ISO 6425 diver certification (2; 100 m earns 1), screw-down crown (1), power reserve of 70 hours or more (1), display caseback (0.5), hacking plus hand-winding (0.5) and lug-to-lug of 47 mm or less (0.5). We rank by points, then by lower US list price. Near-identical colourways are grouped and we show the lowest-priced one. We cap each model family at two picks so the list isn't one watch in six colours.
The Hamilton H70225931 is a sports watch from the Khaki Field collection, part of the Khaki Field Expedition Auto family. It has a 37 mm stainless steel case, 11.45 mm thick. Hamilton lists the dial as black. Inside is an automatic movement (calibre H-10) with 80 h of power reserve. You also get 100 m water resistance, a sapphire crystal and a textile strap.
Good for: Wrists of roughly 14.7–16.6 cm (5.8–6.5 in), by our Watch Finder sizing guide; Everyday wear including swimming.
Why it's here
Sapphire crystal resists scratches
Screw-down crown helps keep water out
80 h power reserve survives a weekend off the wrist
Full specs and fit checkCheck price on AmazonUS list price $1,125 (US list) (brand site, checked 3 Nov 2026). Amazon prices change often, so we don't show them here. Check the seller and warranty before you buy. Amazon links are paid links.
The Hamilton H70455533 is a sports watch from the Khaki Field collection, part of the Khaki Field Auto family. It has a 38 mm stainless steel case, 11 mm thick. Hamilton lists the dial as black. Inside is an automatic movement (calibre H-10) with 80 h of power reserve. You also get 100 m water resistance, a sapphire crystal and a leather strap.
Good for: Wrists of roughly 15.1–17.0 cm (5.9–6.7 in), by our Watch Finder sizing guide; Everyday wear including swimming; Shirt cuffs and smarter dress codes.
Why it's here
Sapphire crystal resists scratches
80 h power reserve survives a weekend off the wrist
Full specs and fit checkCheck price on AmazonUS list price $795 (US list) (brand site, checked 3 Nov 2026). Amazon prices change often, so we don't show them here. Check the seller and warranty before you buy. Amazon links are paid links.
The Hamilton H70455540 is a sports watch from the Khaki Field collection, part of the Khaki Field Auto 38mm family. It has a 38 mm stainless steel case, 11 mm thick. Hamilton lists the dial as blue. Inside is an automatic movement (calibre H-10) with 80 h of power reserve. You also get 100 m water resistance, a sapphire crystal and a leather strap.
Good for: Wrists of roughly 15.1–17.0 cm (5.9–6.7 in), by our Watch Finder sizing guide; Everyday wear including swimming; Shirt cuffs and smarter dress codes.
Why it's here
Sapphire crystal resists scratches
80 h power reserve survives a weekend off the wrist
Full specs and fit checkCheck price on AmazonUS list price $795 (US list) (brand site, checked 3 Nov 2026). Amazon prices change often, so we don't show them here. Check the seller and warranty before you buy. Amazon links are paid links.
The Hamilton H70455160 is a sports watch from the Khaki Field collection, part of the Khaki Field Auto 38 mm family. It has a 38 mm stainless steel case, 11 mm thick. Hamilton lists the dial as green. Inside is an automatic movement (calibre H-10) with 80 h of power reserve. You also get 100 m water resistance, a sapphire crystal and a bracelet.
Good for: Wrists of roughly 15.1–17.0 cm (5.9–6.7 in), by our Watch Finder sizing guide; Everyday wear including swimming; Shirt cuffs and smarter dress codes.
Why it's here
Sapphire crystal resists scratches
80 h power reserve survives a weekend off the wrist
Slim at 11 mm
Trade-offs
None stood out in the published specs
Full specs and fit checkCheck price on AmazonUS list price $845 (US list) (brand site, checked 3 Nov 2026). Amazon prices change often, so we don't show them here. Check the seller and warranty before you buy. Amazon links are paid links.
The Hamilton H70405710 is a sports watch from the Khaki Field collection, part of the Khaki Field Murph 38mm family. It has a 38 mm stainless steel case, 11.1 mm thick. Hamilton lists the dial as white. Inside is an automatic movement (calibre H-10) with 80 h of power reserve. You also get 100 m water resistance, a sapphire crystal and a leather strap.
Good for: Wrists of roughly 15.1–17.0 cm (5.9–6.7 in), by our Watch Finder sizing guide; Everyday wear including swimming.
Why it's here
Sapphire crystal resists scratches
80 h power reserve survives a weekend off the wrist
Full specs and fit checkCheck price on AmazonUS list price $995 (US list) (brand site, checked 3 Nov 2026). Amazon prices change often, so we don't show them here. Check the seller and warranty before you buy. Amazon links are paid links.
The Hamilton H70205830 is a sports watch from the Khaki Field collection, part of the Khaki Field Titanium Auto family. It has a 38 mm titanium case, 11.45 mm thick. Hamilton lists the dial as black. Inside is an automatic movement (calibre H-10) with 80 h of power reserve. You also get 100 m water resistance, a sapphire crystal and a leather strap.
Good for: Wrists of roughly 15.1–17.0 cm (5.9–6.7 in), by our Watch Finder sizing guide; Everyday wear including swimming.
Why it's here
Sapphire crystal resists scratches
80 h power reserve survives a weekend off the wrist
Full specs and fit checkCheck price on AmazonUS list price $1,075 (US list) (brand site, checked 3 Nov 2026). Amazon prices change often, so we don't show them here. Check the seller and warranty before you buy. Amazon links are paid links.
The Hamilton H76205530 is a sports watch from the Khaki Aviation collection, part of the Khaki Aviation Pilot Pioneer family. It has a 38 mm stainless steel case, 11.4 mm thick. Hamilton lists the dial as black. Inside is an automatic movement (calibre H-10) with 80 h of power reserve. You also get 100 m water resistance, a sapphire crystal and a leather strap.
Good for: Wrists of roughly 15.1–17.0 cm (5.9–6.7 in), by our Watch Finder sizing guide; Everyday wear including swimming.
Why it's here
Sapphire crystal resists scratches
80 h power reserve survives a weekend off the wrist
Trade-offs
None stood out in the published specs
Full specs and fit checkCheck price on AmazonUS list price $1,095 (US list) (brand site, checked 3 Nov 2026). Amazon prices change often, so we don't show them here. Check the seller and warranty before you buy. Amazon links are paid links.
The Hamilton H76255810 is a sports watch from the Khaki Aviation collection, part of the Khaki Aviation Pilot Pioneer 38mm family. It has a 38 mm stainless steel case, 11.4 mm thick. Hamilton lists the dial as white. Inside is an automatic movement (calibre H-10) with 80 h of power reserve. You also get 100 m water resistance, a sapphire crystal and a leather strap.
Good for: Wrists of roughly 15.1–17.0 cm (5.9–6.7 in), by our Watch Finder sizing guide; Everyday wear including swimming.
Why it's here
Sapphire crystal resists scratches
80 h power reserve survives a weekend off the wrist
Full specs and fit checkCheck price on AmazonUS list price $1,095 (US list) (brand site, checked 3 Nov 2026). Amazon prices change often, so we don't show them here. Check the seller and warranty before you buy. Amazon links are paid links.
Questions
Which is the cheapest watch in this guide?
The Hamilton Khaki Field Auto H70455533, at a US list price of $795 when we checked.
How did you choose these watches?
We ranked them on published specs only, using the scoring rules on this page. We haven't reviewed or worn these watches for this guide, and no brand or retailer paid to be included.
Which of these can I swim with?
Hamilton Khaki Field Expedition Auto H70225931, Hamilton Khaki Field Auto H70455533, Hamilton Khaki Field Auto 38mm H70455540, Hamilton Khaki Field Auto 38 mm H70455160, Hamilton Khaki Field Murph 38mm H70405710, Hamilton Khaki Field Titanium Auto H70205830 are rated to 100 m or more.
Do you earn money from these links?
Amazon links are paid links: as an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Links to brand sites and eBay are not affiliate links.
