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This is easy!
Easy because I have three watches in my current collection and two of them are either square or rectangular. My only round watch is the Patek 7200 London Edition which is 34.6mm. I hope to add the Patek skeleton (3878J) by August and that watch is 31mm. That would bring my average down to 32.8mm!!! 
Would love to know if anyone has a smaller average
Little PuristS survey 🤓 - What’s the average size of your round watches in your collection? 🤔
Hi all, If I manage an Excel spreadsheet with all the watches I own and owned, I’ve never calculated the average and median sizes (excluding crown) of my round watches until today. Among the 21 round watches (already a relevant sample I think with mainly ...
Classic ones average on 38. Sporty ones average on 41.8
Very interesting exercise imo. Makes one reflect on pst and present. All the very best, Alex
Your both figures make sense in my opinion as you have distinguished classy and sporty timepieces. I didn’t do it as I don’t really own sporty timepieces (my ROO? Maybe but it’s below 40mm)
If we consider a roughly 39.5/40mm average size for all your timepieces in your collection, what’s the ratio with your wrist size? Thank you for your input Alex. Best wishes Alkiro
My smallest are 2 x 37 mm
and the largest is 42 mm. All others are between 39 mm and 40.5 mm. Without deeper analyses I would say that the average is 39.0 - 39.5 mm. Often 37 mm feels a bit small while 42 mm feels a bit big. My dream size is 39.5 mm which suits well to my chicken ...
Thanks for you input Kari
Well, if I summarise, your wrist size (200mm) / average watch size (39.5mm) ratio is above 5 but regarding your wrist size (mine is more chicken than yours with 2cm less), that makes sense. Interesting to note too that your extreme sizes are concentrated ...
I normally would not buy 42 mm
but when I got an opportunity to get Patek 5070P London Edition, Could not refuse. This watch does not look too big on my wrist but I feel better with watches of 39.5 mm like 5170P. Best, Kari
This Patek might be large
But it is beautiful. Suits you very well in my opinion, at least judging by your wrist shots. I think size isn’t the important thing, it’s the design of the watch and how you wear it. For example I’m not a ‘huge watch’ guy, but my Radiomir suits me perfec...
I think we should find these average figures again quite often
Thank you. Best wishes Alkiro
I just did the math...
Across the current collection, the average is: 44.285714285714286 mm (Interesting number)
Not the golden number but an impressive one for sure 😁
And what’s your wrist size? Best wishes Alkiro
About 8"
I went from wearing my Submariner, Daytona and Seiko to wearing a 48mm Hublot King Power ( I have three now ). Still, most of my newer watches run about 45mm which I think wear well for me. Today, infant: ...
I would say
for vintage it averages at around 33-34mm for modern around 39-40mm My smallest (vintage) is 31mm and my biggest (modern) is 46mm CC
My metrics...
Shows an increase in size. Dress ones average 40mm. Sport watches 44+mm. The fact is that my wife keeps an eye on anything less than 40mm. As we speak, she was trying my Omega Central Tourbillon!!! Fear!!! Cheers, Nilo
LOL be cautious dear Nilo 😁 Change the safe’s code.
Your two figures could appear quite big (at least for me). But, which is more interesting is the increasing trend. Ultimately, as you own modern watches, they follow the watch size trend of these last years. Best wishes Alkiro
I did not use the calculator
alkiro, It would take some effort to gather and measure all my round watches so I chickened out. My current smallest is 30mm and largest is 46mm (but I've reached 49mm before). Roamer 30mm The mode is 42mm as exemplified by the L.U.C 1963 Chrono PuristS s...
Interesting to note that your extreme figures are even bigger than CC ones with 19mm 😳
I’m impressed by your mean case size at 43mm. Thank you Melvyn. Best wishes Alkiro
43mm is artefact
Due to nearly all sportive watches in last 5 years and the industry norm, my recent purchased mean diameter is 43mm. I guess my whole collection over 20 years is nearer 40mm. Regards MTF
Relatively concentrated sizes and probably right with today’s standard I would say
Thank you. Best wishes Alkiro
Compared to me, your wrist size is slightly smaller than mine but your average case size (I took 40mm) is much more significant which gives a weaker ratio (4.3 vs 4.8)
Thank you for this additional info. Best wishes Alkiro
I wrote few things about it which should answer to your questions 😉
If you need more info do not hesitate to tell me. Best wishes Alkiro
Average is 36.95
I have three watches under 37mm and one that is 40mm. My wrist size is about 6.4 inches.
Regarding your wrist size (15.2 cm or 6.4 inches), the ratio with your average case size is close to 4 which could appear consistent
Thank you for your input. Best wishes Alkiro
The average size of all my watches is 39.9 mm
I only own round or almost round watches. Minimum Diameter is 38mm, Maximum is 43-44mm. All Dress watches are 38-40mm, all Sports watches are 39-44mm.
18.5cm is my wrist size
I have to add, that my wrist is Not round, but more flat, so I can wear larger watches. Also, I'm almost 2m tall, so small watches below 38mm look silly on me.
This is easy!
Easy because I have three watches in my current collection and two of them are either square or rectangular. My only round watch is the Patek 7200 London Edition which is 34.6mm. I hope to add the Patek skeleton (3878J) by August and that watch is 31mm. T...
Will try to answer you within the next 24 hours
as I have only had 4 hours of sleep in the past 48 hours. I am so jet lagged that Malaysians have been moaning about the heat here and I have just arrived from zero celsius London and thought the weather was quite pleasant here
There is a better chance
of me being able to afford a Patek minute repeater than to recover from my perpetual jet lag! But I am getting better as I now sleep at 4.30am instead of 8am!! So I shall keep you company when you post on the forum
40.0
Alkiro, With a range of 37.0 to 42.0, my collection has a mean of exactly 40.0. With a more systematic survey of a larger sample, it would be interesting to look at the relationship of mean watch size to age. Park
Thank you Park
You’re right, that would be interesting to add another dimension to this survey with the age of each owner. Best wishes Alkiro
I come here to escape reality, and you're making me do homework?
What am I, a first-year analyst? Kidding, of course, my dear friend. Without doing the spreadsheet (I do enough anyway), I would say some where around 40mm. This is just an eyeball, but I might have to do this exercise when the time allows, sounds interes...
Ha ha ha 😁
Don’t forget that homework are not really homework if they’re based on a passion. Impatient to know your results my dear intern LOL. Best wishes Alkiro
No surprise here
I no longer own any square waiting watches since selling my Monaco. My dress watches (3) average 36.9 mm across the round of the case and the sports watches (3) average 41.5. My smallest is my Vacheron 7397 at 34.9 across. My wrist are a puny 17.5 cms. Lu...
34+36+38
34 mm is an old Ebel time zone which i've been given as temporary watch from a big-hearted friend. Actually too small to read it properly, but it's a precious gift. I'd say my current watches are 36 (Gp 8010) and 38 mm of an old Zenith Pilot defy , so it'...
Well, if we only keep the last two watches, we share the same median 😉
Thank you. Best wishes Alkiro
You have 21 watches!
Definitely too many for me. I wish one day i'll be able to afford the Dato (new or old model would fine as well), but it's more likely for me to buy the new octo
You know, one of my main goal now is to reduce this number between 12 to 15 maximum 😉
Regarding the Dato, I really wish you to own one one day. An icon! Best wishes Alkiro
From 34 to 45.
Lately I only wear 40mm and below. It's been years since I don't wear anything larger. I tried with the Seamaster 300, but its 41mm, plus its height, were too much for me. I feel comfortable with anything between 37 to 40mm, and the thinner, the better. T...
Excellent my friend 😁👍
Almost 41mm for you, I’m not surprised at all. What’s your watch in 36mm? Two 38.8mm watches. I can guess your Moser. What’s the other one? 🤔 Best wishes Alkiro
Well done Alkiro!
I think every watch addict has a spreadsheet to track watches past and present, serial numbers, buy and sell price and sometimes even ratings but I’ve never heard of anyone tracking median sizes! Hahaha My overall smallest was 36 l, my largest 44 but in t...
That’s the magic of Excel. I even could have calculated a standard deviation but that would have been “too much” I guess LOL 😁
Your average size (at least for the last 6 watches) is slightly above 40mm but your dispersion is very weak here. Interesting. Thank you Best wishes Alkiro
The average is 40.3mm.
The smallest is my calatrava at 37mm. The largest is my SG50 Ball at 44mm. J ...
Your 6000G has exactly the size of my median. Maybe a sign! And a very nice one 😉
If I may ask, what’s your wrist size? Best wishes Alkiro
Mine is 42.5mm average
This year, that average will likely be lowered with the addition of a piece to round out my collection My wrist is approx 6.5 to 7” so the ratio would be about 4.1? Maybe I’m wrong... I’m mathematically impaired at times.
You’re right, that gives a relatively low ratio around 4.1
Interesting Harry. Thank you. Best wishes Alkiro
It is very interesting. Thank you for starting this conversation!
My average gets skewed a bit by the sportier tool watches that are half of my collection. 37-38mm to me is really a perfect size for my smaller wrists, but I find some larger watches irresistible. I think my average will tend to come down with future addi...
LOL yes 😁
For you that doesn’t work. Don’t tell me you have not few round timepieces in your deep collection 😉 Best wishes Alkiro
Let’s see
In reverse chronological order 38.5 (Lange) 40 (IWC) 40 (Rolex) 39 (AP) 38 (FPJ) 37 (PP) Wrist: 6-6.5 (damn ectomorphism) Ratio: somebody else do the math. : )
So you have an average case size of 38.75 and if we take the upper side of your wrist size we have a ratio of 4.3 approximately 😉
Interesting to note that your watch sizes are very concentrated in only 3mm. Thank you
Top of mind...
While lying in bed at 5 AM with the iPhone calculator as my tool the mean comes to 38,5mm from 24 pieces I thought about. Smallest 33mm, largest 45mm, with 8 at 40mm or more and the rest below. Wrist of 17,5cm. Hope this helps.
Interesting my friend. Knowing you a little bit, I would have bet on a lower mean size even if 38,5mm is not big at all.
As we have almost the same wrist size, that gives you a ratio of 4,5 (slightly lower than I). We are made to get on well together 😁 I don’t know if it works with Tartares 😋😉 Best wishes Alkiro
Ok.....
The range is 35-45, with a definite skew lower. Just one at 45. One at 42. A lot between 39-41. A lot between 35-38. Mode at 40. Mean at 38-39.
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