Okay, let me break down exactly how I tackled this watch size thing because people kept asking. Grabbed my 40mm dive watch – the chunky one with all the fancy markings – and strapped it onto my 7-inch wrist. Stood in front of the mirror first. Just kinda looked… off? Like I borrowed it from someone bigger.

Time For Some Real Testing
Didn’t just trust my eyes. Snapped a couple mirror selfies like everyone does. Zoomed in later. Yep, the lugs – those metal bits sticking out – were kinda right at the edge of my wrist bone. Barely. Gave that “floating” look, you know? Not terrible, but made me wonder.
Pulled out my sewing tape measure next – the flimsy kind my mom uses. Measured wrist flat: about 7 inches across where the watch sits. Then the watch itself: yeah, 40mm case, but those lugs measured nearly 50mm tip-to-tip! That lug distance matters more than the dial size, I swear.
Shaking Things Up
Had this old 36mm dress watch buried in a drawer. Dusted it off, slapped it on. Mirror again. Huh. Looked… tiny? Like a kid’s watch suddenly. Felt wrong after wearing bigger stuff daily.
Went back to the dive watch. Took it off my hand and held it upright instead of flat on a table. Big difference! Watches look way smaller lying flat than they do wrapping around your living wrist. Don’t let online store pics fool you.
Trying on a Buddy’s Gear
Met my friend Dave who has tree-trunk wrists. Tried on his massive 44mm pilot watch. Looked ridiculous on me – lugs hung way over. Like wearing a dinner plate. Then swapped wrists – he wore my 40mm. Looked almost comically small on him, like a tiny medal pinned on a fridge.

My Takeaways
- Mirror first, photos second. Cameras distort sometimes.
- Measure lug-to-lug, not just case size. That’s the metal bar length.
- Wrist size matters: Flat tape across your wrist bone is gold.
For my 7-inch wrist? 40mm sits right at the max limit if the lugs don’t overhang. Now I shoot for 38mm-40mm watches with shorter lug lengths – stays proportional.