Strap matcher

Best straps for the Omega Seamaster Diver 300M

20 mm lugs, 42 mm case, reference 210.30.42.20.03.001. Try a strap below; the drawing is to scale.

Omega Seamaster Diver 300M on a steel three-link bracelet
Strap
Colour: Steel
Strap width20 mm
At the buckle16 mm
Lug to lug50 mm

Looks that work on the Omega Seamaster Diver 300M

Strap size for the Omega Seamaster Diver 300M

What size strap fits the Omega Seamaster Diver 300M?

The Omega Seamaster Diver 300M takes 20 mm straps: its lug width is 20 mm. A leather strap will usually taper to 18 mm at the buckle.

How big is the Omega Seamaster Diver 300M?

The case is 42 mm across, and about 50 mm from lug tip to lug tip.

What strap looks best on the Omega Seamaster Diver 300M?

Good options are a black rubber strap, a navy, red and green NATO strap, a taupe suede strap. Try them all on the drawing above.

Sizes come from published specs. Check yours before you buy: how to measure lug width.