The Rolex Forums   The Rolex Watch

ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX


Go Back   Rolex Forums - Rolex Forum > Rolex & Tudor Watch Topics > Rolex WatchTech

View Poll Results: Does your 32xx movement seem to be 100% ok?
Yes, no issues 1,059 69.72%
No, amplitude is low (below 200) but timekeeping is still fine 62 4.08%
No, amplitude is low (below 200) and timekeeping is off (>5 s/d) 398 26.20%
Voters: 1519. You may not vote on this poll

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 20 March 2022, 07:41 AM   #10
dannyp
Banned
 
Join Date: Aug 2009
Location: usa
Posts: 6,765
Quote:
Originally Posted by Dirt View Post
Hand length and weight are certainly a factor but in this case it's only transient as the hands move around the dial in the vertical planes.
As the hands are moving uphill more torque is required to drive them, when they are going downhill it's not really a consideration. In effect, it's a 50/50 proposition to put it in its simplest terms but still a factor.
It can be demonstrated at home by yourself with a simple experiment by setting your watch aside in any vertical position and leaving it to run down and stop of its own accord. You will notice a traditional lever escapement will stop with the Seconds hand roughly as its rotating upward and load is at its maximum. For example, the Seconds hand will stop in the vicinity of the 12 o'clock marker if the watch is left to stop in the "Crown up" position. The other vertical resting positions will yield their own result relative to the Crown position when the watch eventually stops.

Also weight and length are a more serious consideration when we are comparing different types of movements.
For example, a mechanical movement can handle longer and heavier hands because of the inherently higher torque used to drive the movement from the Mainspring.

Way out on the other end of the spectrum, a Quartz movement typically has considerably less torque so weight and length of hands is a much more important factor. But again, it's mostly a factor in the vertical positions but torque is still a factor in the horizontal planes with a Quartz movement that has an Analogue display.
But what about when you compare, say, an OP41 with an OP36, both left face-up? The same movement is working harder at all times in the 41, unless it's calibrated differently. Now, I'm going to assume it was designed to handle the "load," of the 41 hands, but I would also imagine that would cause the 36 to run faster if calibrated identically.

The previous generation of non-date watches had different calibre movements (3132) in the larger dialed (therefore, long-handed) pieces (Exp 39, OP39) vs the smaller-dialed ones like the 36mm and Sub (3130). Similar difference for large-dialed date watches (3136 in DJII, 3156 in DDII). The "12" series use the same calibre in 36, 40, and 41mm watches.

I started to wonder about this when I realized that most of the complaints on here (granted, very small overall sampling) about 32xx issues, especially recurrent ones, were in larger-diameter watches (DJ41, SD43). But who knows...
dannyp is offline   Reply With Quote
 


Currently Active Users Viewing This Thread: 15 (0 members and 15 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Asset Appeal

Wrist Aficionado

DavidSW Watches

Takuya Watches

OCWatches


*Banners Of The Month*
This space is provided to horological resources.





Copyright ©2004-2024, The Rolex Forums. All Rights Reserved.

ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX

Rolex is a registered trademark of ROLEX USA. The Rolex Forums is not affiliated with ROLEX USA in any way.