Omega Watches Under 40mm

2435 Omega models with a case width between 0mm and 40mm — compact sizing that suits smaller wrists and dressier looks. Each links to full specs and a wrist-fit check.

Model	Width	Thickness	Shape
Museum Collection Seamaster XXIX / 2008 Beijing Olympics Day 15	37mm	—	circular
Museum Collection Seamaster XXIX / 2008 Beijing Olympics Day 12	37mm	—	circular
Museum Collection Seamaster XXIX / 2008 Beijing Olympics Day 11	37mm	—	circular
Museum Collection Seamaster XXIX / 2008 Beijing Olympics Day 10	37mm	—	circular
Museum Collection Seamaster XXIX / 2008 Beijing Olympics Day 9	37mm	—	circular
Museum Collection Seamaster XXIX / 2008 Beijing Olympics Day 8	37mm	—	circular
De Ville X2 Co-Axial 37 Chronograph Stainless Steel / Silver	37mm	—	rectangle
De Ville X2 Co-Axial 37 Chronograph Stainless Steel / Black	37mm	—	rectangle
De Ville X2 Co-Axial 37 Chronograph Red Gold / Brown	37mm	—	rectangle
Seamaster 120M Multifunction Stainless Steel / Blue	37.4mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 39.5 Master Chronometer Stainless Steel / Diamond / Black / Alligator	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Olympic Collection Sochi 2014	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Titanium / Liquidmetal / Rubber	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Titanium / LiquidMetal / Bracelet	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Diamond / Black / Alligator	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Red Gold / Diamond / Alligator	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Black / Bracelet	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / White / Alligator	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Red Gold / Diamond / White / Alligator	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Diamond / White / Bracelet	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Orange Numerals / Bracelet	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Orange Numerals / Alligator	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Black / Alligator	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / White / Bracelet	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Diamond / White / Alligator	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Chronograph Stainless Steel / Black / Rubber	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Chronograph Stainless Steel / Orange / Bracelet	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Chronograph Stainless Steel / Orange / Rubber	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Chronograph Stainless Steel / Black / Bracelet	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Chronograph Stainless Steel / Black / Bracelet / Olympic Timeless	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Chronograph Stainless Steel / Red Gold / Diamond / White / Alligator	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Chronograph Stainless Steel / Diamond / Black / Alligator	37.5mm	—	circular
De Ville Co-Axial 37.5 Platinum / Copper / LTD	37.5mm	—	circular
De Ville Co-Axial 37.5 Yellow Gold / Silver / LTD	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Red Gold / White Planet St. Moritz	37.5mm	—	circular
De Ville Co-Axial 37.5 Yellow Gold / Silver	37.5mm	—	circular
De Ville Co-Axial 37.5 Red Gold / Skeleton	37.5mm	—	circular
De Ville Co-Axial 37.5 Yellow Gold / Skeleton	37.5mm	—	circular
De Ville Co-Axial 37.5 Red Gold / White	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Diamond / Black / Bracelet	37.5mm	—	circular
De Ville Co-Axial 37.5 White Gold / Silver / LTD	37.5mm	—	circular
De Ville Co-Axial 37.5 Red Gold / Blue / LTD	37.5mm	—	circular
De Ville Co-Axial 37.5 Stainless Steel / Black / Bracelet	37.5mm	—	circular
De Ville Co-Axial 37.5 Stainless Steel / Silver	37.5mm	—	circular
Seamaster Planet Ocean 600M Co-Axial 37.5 Red Gold / Black / Alligator	37.5mm	—	circular
De Ville Co-Axial 37.5 Stainless Steel / Silver / Japan	37.5mm	—	circular
De Ville Co-Axial 37.5 Yellow Gold / Blue	37.5mm	—	circular
De Ville Co-Axial 37.5 Yellow Gold / White / Bracelet	37.5mm	—	circular
De Ville Co-Axial 37.5 Stainless Steel / White / Bracelet	37.5mm	—	circular
De Ville Co-Axial 37.5 White Gold / Skeleton	37.5mm	—	circular
De Ville Co-Axial 37.5 Stainless Steel / Black	37.5mm	—	circular
Musem Collection N° 3 "Officers 1945"	37.8mm	—	circular
Speedmaster Date 38 Milano Cortina 2026 Winter Olympics	38mm	14.75mm	circular
Speedmaster Date 38 Milano Cortina 2026 Winter Olympics	38mm	14.75mm	circular
Seamaster Aqua Terra 150M Master Chronometer 38 Stainless Steel - Ceramic / Turquoise / Rubber	38mm	—	circular
Railmaster Omega Co-Axial Master Chronometer 38 Stainless Steel / Grey Gradient	38mm	12.36mm	circular
Railmaster Omega Co-Axial Master Chronometer 38 Stainless Steel / Grey Gradient / Bracelet	38mm	12.36mm	circular
Railmaster Omega Co-Axial Master Chronometer Small Seconds 38 Stainless Steel / Beige Gradient / Bracelet	38mm	12.36mm	circular
Seamaster Aqua Terra 150M Shades Master Chronometer 38 Stainless Steel / Lavender / Bracelet	38mm	12.4mm	circular
Seamaster Aqua Terra 150M Shades Master Chronometer 38 Stainless Steel / Shell Pink / Bracelet	38mm	12.4mm	circular