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springer · 31 July 2016, 03:19 PM

Below you will find tables for Rolex crystal numbers taken directly from their R. 20 Catalogue. It contains both tropic (non cyclopes crystal) and cyclope crystal numbers.

Each column contains a number at the top which is the crystal number. Directly below the crystal number is a listing for the models that use the crystal.

The first two yellow pages are for tropic crystals, the next two white pages are for cyclope crystals and the last page is for replacement tropic crystals that work as replacements for cyclope crystals. As an example, look at the the 116 cyclope crystal. A few columns to the right you will see that the tropic 38 is a replacement for this crystal for the 116 cyclope. Now, if you go back and look at the 116 cyclope crystal group, you'll see that that this group includes the GMT 1675 and 1652 and the Explorer II 1655.

ched · 8 August 2016, 08:53 AM

great information.very interesting

ILuvSubs · 20 June 2019, 11:55 AM

This is super helpful and useful Springer. Thank you for sharing.

31 July 2016, 03:19 PM	#1
springer 2024 SubLV41 Pledge Member Join Date: Apr 2008 Real Name: jP Location: Texas Watch: GMT-MASTER Posts: 17,318	Rolex crystal numbers from the R. 20 Catalogue Below you will find tables for Rolex crystal numbers taken directly from their R. 20 Catalogue. It contains both tropic (non cyclopes crystal) and cyclope crystal numbers. Each column contains a number at the top which is the crystal number. Directly below the crystal number is a listing for the models that use the crystal. The first two yellow pages are for tropic crystals, the next two white pages are for cyclope crystals and the last page is for replacement tropic crystals that work as replacements for cyclope crystals. As an example, look at the the 116 cyclope crystal. A few columns to the right you will see that the tropic 38 is a replacement for this crystal for the 116 cyclope. Now, if you go back and look at the 116 cyclope crystal group, you'll see that that this group includes the GMT 1675 and 1652 and the Explorer II 1655. Attached Images __________________ Member of NAWCC since 1990. INSTAGRAM USER NAME: SPRINGERJFP Visit my Instagram page to view some of the finest vintage GMTs anywhere - as well as other vintage classics.

8 August 2016, 08:53 AM	#2
ched Banned Join Date: Aug 2016 Location: U.S Posts: 53	great information.very interesting

20 June 2019, 11:55 AM	#3
ILuvSubs 2024 Pledge Member Join Date: Feb 2015 Location: Sydney, Australia Posts: 1,011	This is super helpful and useful Springer. Thank you for sharing.

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