We've compiled a list of watches sized below 40mm.
Amazon.com: Peugeot Men's 40mm Ultra Slim Watch, Silver with Black Face Round Minimalist Wrist Watch for Men, Easy to Read Dial and Genuine Leather Band : Peugeot: Clothing, Shoes & Jewelry
Limit Mens Classic Watch (5441) - Round | 40mm | Black Leather Strap | Gold Dial | Limit
40mm Watch Collection for Men | Nordgreen UK
Movado | Movado Company Store | Movado Signature Men's Watch
Oris Divers Sixty-Five Brown Leather 40mm Men's Watch at Fraser Hart
Sekonda Mens 40mm Quartz Watch Blue Case and Black Leather Strap with Blue Dial 1843 : Amazon.co.uk: Fashion
Bauen 40mm Black Case - Precision Watch Company
MVMT Men's 40mm 40 Series Steel Watch - Black | Catch.co.nz
TISSOT Men's Watch Collection | Tissot® official website | Tissot
These Are the Best Small Men's Watches
33 Best Small Watches for Men: Timepieces Under 40mm | Teddy Baldassarre
40mm PARNIS black dial ceramic bezel Sapphire glass GMT automatic mens watch | eBay