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E16520kimm · 6 February 2020, 08:25 AM

Quick question for the group. I apologize if everyone knows this except for me. On the AP Chrono, for the 30 minute sub dial, has anyone else noticed that it slowly creeps forward like a slow sweep hand, as opposed to waiting to the last second and jumping to the next minute (like a Daytona or most other chronos)? I saw this on an Offshore watch recently and I’m trying to figure out if that is standard design. It seems very smooth and purposeful, slowly moving forward throughout the minute it is timing. Thank you for the help. I apologize in advance this is a repeat question. I tried to look exhaustively and could not find information anywhere

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beshannon · 6 February 2020, 10:38 PM

You might want to post the question in the AP sub forum

Reign · 7 February 2020, 12:58 AM

Have a look at this article but it’s due to the ROO having modular chrono movement vs ROCs having integrated chrono movements.

“Also worth noting is that the minute recorder doesn’t have a jumper spring, so the minute hand runs continuously.”

https://wornandwound.com/watchmakers...-chronographs/

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E16520kimm · 7 February 2020, 03:49 PM

Quote:

Originally Posted by Reign

Have a look at this article but it’s due to the ROO having modular chrono movement vs ROCs having integrated chrono movements.

“Also worth noting is that the minute recorder doesn’t have a jumper spring, so the minute hand runs continuously.”

https://wornandwound.com/watchmakers...-chronographs/

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Great response. Exactly what I was looking for. Thank you.

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6 February 2020, 08:25 AM	#1
E16520kimm "TRF" Member Join Date: Dec 2019 Location: California Watch: Rolex 16520 or Pat Posts: 43	AP RO Offshore Chrono Question Quick question for the group. I apologize if everyone knows this except for me. On the AP Chrono, for the 30 minute sub dial, has anyone else noticed that it slowly creeps forward like a slow sweep hand, as opposed to waiting to the last second and jumping to the next minute (like a Daytona or most other chronos)? I saw this on an Offshore watch recently and I’m trying to figure out if that is standard design. It seems very smooth and purposeful, slowly moving forward throughout the minute it is timing. Thank you for the help. I apologize in advance this is a repeat question. I tried to look exhaustively and could not find information anywhere Sent from my iPhone using Tapatalk

6 February 2020, 10:38 PM	#2
beshannon "TRF" Member Join Date: Jun 2009 Real Name: Brian Location: Northern Virginia Watch: One of Not Many Posts: 17,892	You might want to post the question in the AP sub forum __________________ IWC Portugieser 7 Day, Omega Seamaster SMP300m, Vacheron Constantin Traditionnelle Complete Calendar, Glashutte PanoInverse, Glashutte SeaQ Panorama Date, Omega Aqua Terra 150, Omega CK 859, Omega Speedmaster 3861 Moonwatch, Breitling Superocean Steelfish, JLC Atmos Transparent Clock

7 February 2020, 12:58 AM	#3
Reign "TRF" Member Join Date: Oct 2018 Location: USA Posts: 1,212	Have a look at this article but it’s due to the ROO having modular chrono movement vs ROCs having integrated chrono movements. “Also worth noting is that the minute recorder doesn’t have a jumper spring, so the minute hand runs continuously.” https://wornandwound.com/watchmakers...-chronographs/ Sent from my iPhone using Tapatalk

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