Omega Seamaster Diver 300M 42mm
210.30.42.20.01.001
How it wears
Wears true to its 42 mm case size
Omega Seamaster Diver 300M 42mm measures 49.9 mm lug-to-lug on a 42 mm case, a lug-to-lug ratio of 1.19 against a database median of 1.18. That span is longer than 83% of the 8,010 watches in this database and longer than 79% of the 487 Omega watches listed.
A flat wrist width of 56 mm (2.20 in) or more keeps it in the balanced range, and from 67 mm (2.64 in) it starts to look compact. Below 49.9 mm (1.96 in) the lugs are likely to overhang the wrist. Flat wrist width is measured straight across the top of the wrist, not around it.
At 13.6 mm thick it is on the thicker side, thicker than 76% of the watches with a listed thickness.
Wrist fit analyzer
Fit reference
Fills most of the wrist for a bold, sporty fit; lug shape and end links matter.
Sources
- https://pinwatch.blogspot.com/2019/02/blog-post_23.html
User-authored blog post lists the 210.30.42.20.01.001 at 42 mm case size and 50 mm lug-to-lug.
- https://monochrome-watches.com/omega-seamaster-diver-300m-co-axial-master-chronometer-42mm-underwater-dive-review-price/
MONOCHROME reports 50mm lug-to-lug, 42mm case size/width, 13.7mm thickness, 20mm lug width for Omega Seamaster Diver 300M in “Diving With the Omega Seamaster Diver 300M.”
- https://monochrome-watches.com/introducing-omega-seamaster-diver-300m-paris-2024-edition-new-patented-quick-change-system-moonshine-gold-bezel-52221422004001-specs-price/
MONOCHROME reports 50mm lug-to-lug, 42mm case size/width, 13.7mm thickness for Omega Seamaster Diver 300M in “The New Omega Seamaster Diver 300M Paris 2024 Edition.”
- https://monochrome-watches.com/2025-omega-seamaster-diver-300m-no-date-orange-video-review-price/
MONOCHROME reports 50mm lug-to-lug, 42mm case size/width, 13.8mm thickness for Omega Seamaster Diver 300M in “The Omega Seamaster Diver 300M No-Date Turns Orange (Incl. Video).”
- https://monochrome-watches.com/omega-seamaster-diver-300m-titanium-bronze-gold-no-date-green-dial-aluminium-bezel-video-review-price/
MONOCHROME reports 50mm lug-to-lug, 42mm case size/width for Omega Seamaster Diver 300M in “The new Omega Seamaster Diver 300M No-Date Titanium & Bronze Gold (Incl. Video).” The article's explicit planar case length/top-to-bottom dimension is stored as the lug-to-lug equivalent.
- https://monochrome-watches.com/review-2025-omega-seamaster-diver-300m-bronze-gold-burgundy-bezel-review-price/
MONOCHROME reports 50mm lug-to-lug, 42mm case size/width for Omega Seamaster Diver 300M in “The Omega Seamaster Diver 300M now in Bronze Gold and Burgundy.” The article's explicit planar case length/top-to-bottom dimension is stored as the lug-to-lug equivalent.
- https://monochrome-watches.com/new-moonshine-and-sedna-gold-editions-of-the-omega-seamaster-diver-300m/
MONOCHROME reports 50mm lug-to-lug, 42mm case size/width for Omega Seamaster Diver 300M in “New Moonshine and Sedna Gold Editions of the Omega Seamaster Diver 300M.” The article's explicit planar case length/top-to-bottom dimension is stored as the lug-to-lug equivalent.
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