EPSA Super-Compressor - Revision history

Dario at 01:20, 3 December 2023

2023-12-03T01:20:06Z

← Older revision		Revision as of 03:20, 3 December 2023
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	* [[Felca]]		* [[Felca]]
	* [[Fortis]]		* [[Fortis]]
			* [[Frey]]
	* [[Girard Perregaux]]		* [[Girard Perregaux]]
	* [[Glycine]]		* [[Glycine]]

Peder Seiler: /* How many different manufacturers used dual-crown Super-Compressor cases? */

2022-06-15T12:42:38Z

How many different manufacturers used dual-crown Super-Compressor cases?

← Older revision		Revision as of 14:42, 15 June 2022
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	* [[IWC]]		* [[IWC]]
	* [[Jaeger-LeCoultre]]		* [[Jaeger-LeCoultre]]
			* [[Lagonda]]
	* [[Le Cheminant]]		* [[Le Cheminant]]
	* [[LIP\|Lip]]		* [[LIP\|Lip]]

Noixrouge at 12:25, 3 November 2020

2020-11-03T12:25:34Z

← Older revision		Revision as of 14:25, 3 November 2020
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	* [[Blancpain]]		* [[Blancpain]]
	* [[Bucherer]]		* [[Bucherer]]
			* [[Buler]]
	* [[Bulova]]		* [[Bulova]]
	* [[Clarna]]		* [[Clarna]]

Richard: /* How many different manufacturers used dual-crown Super-Compressor cases? */

2020-06-10T16:51:00Z

How many different manufacturers used dual-crown Super-Compressor cases?

← Older revision		Revision as of 18:51, 10 June 2020
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	* [[Rona]]		* [[Rona]]
	* [[Solix]]		* [[Solix]]
	* [[~~Solvil~~ Titus]]		* [[Titus]]
	* [[Suter]]		* [[Suter]]
	* [[Talis]]		* [[Talis]]

Richard: /* What are Compressor and Compressor 2 types, and how are they different from the Super-Compressor? */

2020-06-10T16:49:17Z

What are Compressor and Compressor 2 types, and how are they different from the Super-Compressor?

← Older revision		Revision as of 18:49, 10 June 2020
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	===What are Compressor and Compressor 2 types, and how are they different from the Super-Compressor?===		===What are Compressor and Compressor 2 types, and how are they different from the Super-Compressor?===
			[[File:Piquerez compressor-405x349.jpg\|thumb]]
	Both the Compressor and Compressor 2 types have snap on case backs. Compressor 2 types use a shaped case (i.e. square, cushion or tonneau), not round. Compressor and Compressor 2 watches while water resistant, are commonly seen in "fashion" watch styles, and while designed to be water resistant are not dive watches. The exception to this is the triple-crown Compressor cased JLC Polaris. The Super-Compressors use a screw-on case back, excepting the Enicar models which use a bayonet mount caseback. The Super-Compressor designation is used on both single and dual-crown types.		Both the Compressor and Compressor 2 types have snap on case backs. Compressor 2 types use a shaped case (i.e. square, cushion or tonneau), not round. Compressor and Compressor 2 watches while water resistant, are commonly seen in "fashion" watch styles, and while designed to be water resistant are not dive watches. The exception to this is the triple-crown Compressor cased JLC Polaris. The Super-Compressors use a screw-on case back, excepting the Enicar models which use a bayonet mount caseback. The Super-Compressor designation is used on both single and dual-crown types.

Richard: /* How many different manufacturers used dual-crown Super- Compressor cases? */

2020-06-10T15:34:17Z

How many different manufacturers used dual-crown Super- Compressor cases?

← Older revision		Revision as of 17:34, 10 June 2020
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	Screw-on case backs carry the numbers 317537 and 337462. Bayonet mount ([[Enicar]] cases) case backs have the number 314962.		Screw-on case backs carry the numbers 317537 and 337462. Bayonet mount ([[Enicar]] cases) case backs have the number 314962.

	===How many different manufacturers used dual-crown Super- Compressor cases?===		===How many different manufacturers used dual-crown Super-Compressor cases?===
	[[File:Droz sc.jpg\|thumb]]		[[File:Droz sc.jpg\|thumb]]
	Dual-crown Super-Compressor cases were very popular and used by many watch manufacturers, from the very best like JLC, Zenith and Longines to relative unknowns. Here's a list of companies known to have used the dual-crown Super-Compressor case, compiled by Dave at the MWR Forum.		Dual-crown Super-Compressor cases were very popular and used by many watch manufacturers, from the very best like JLC, Zenith and Longines to relative unknowns. Here's a list of companies known to have used the dual-crown Super-Compressor case, compiled by Dave at the MWR Forum.

Richard: /* What are Compressor and Compressor 2 types, and how are they different from the Super-Compressor? */

2020-06-10T15:33:37Z

What are Compressor and Compressor 2 types, and how are they different from the Super-Compressor?

← Older revision		Revision as of 17:33, 10 June 2020
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	===What are Compressor and Compressor 2 types, and how are they different from the Super-Compressor?===		===What are Compressor and Compressor 2 types, and how are they different from the Super-Compressor?===
	~~From~~ Both the Compressor and Compressor 2 types have snap on case backs. Compressor 2 types use a shaped case (i.e. square, cushion or tonneau), not round. Compressor and Compressor 2 watches while water resistant, are commonly seen in "fashion" watch styles, and while designed to be water resistant are not dive watches. The exception to this is the triple-crown Compressor cased JLC Polaris. The Super-Compressors use a screw-on case back, excepting the Enicar models which use a bayonet mount caseback. The Super-Compressor designation is used on both single and dual-crown types.		Both the Compressor and Compressor 2 types have snap on case backs. Compressor 2 types use a shaped case (i.e. square, cushion or tonneau), not round. Compressor and Compressor 2 watches while water resistant, are commonly seen in "fashion" watch styles, and while designed to be water resistant are not dive watches. The exception to this is the triple-crown Compressor cased JLC Polaris. The Super-Compressors use a screw-on case back, excepting the Enicar models which use a bayonet mount caseback. The Super-Compressor designation is used on both single and dual-crown types.

	===Do all Super-Compressors have a screw-on case back?===		===Do all Super-Compressors have a screw-on case back?===

Richard: /* How many different manufacturers used dual-crown Super- Compressor cases? */

2020-06-10T13:02:50Z

How many different manufacturers used dual-crown Super- Compressor cases?

← Older revision		Revision as of 15:02, 10 June 2020
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	===How many different manufacturers used dual-crown Super- Compressor cases?===		===How many different manufacturers used dual-crown Super- Compressor cases?===
			[[File:Droz sc.jpg\|thumb]]
	Dual-crown Super-Compressor cases were very popular and used by many watch manufacturers, from the very best like JLC, Zenith and Longines to relative unknowns. Here's a list of companies known to have used the dual-crown Super-Compressor case, compiled by Dave at the MWR Forum.		Dual-crown Super-Compressor cases were very popular and used by many watch manufacturers, from the very best like JLC, Zenith and Longines to relative unknowns. Here's a list of companies known to have used the dual-crown Super-Compressor case, compiled by Dave at the MWR Forum.

Richard at 12:59, 10 June 2020

2020-06-10T12:59:13Z

← Older revision		Revision as of 14:59, 10 June 2020
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	~~[[File:EPSA patent.png\|thumb]]~~
	==EPSA Super-Compressor==		==EPSA Super-Compressor==

	===What is a “Super-Compressor” dive watch? ===		===What is a “Super-Compressor” dive watch? ===
			[[File:EPSA patent.png\|thumb]]
	“Super-Compressor” refers to a patented case sealing method developed by watch case manufacturer Ervin Piquerez S.A. ([[EPSA]]). The design takes advantage of the water pressure the case is exposed to at depth to press the case back against the o-ring seal . More depth equals more water pressure equals greater seal. Dual crown		“Super-Compressor” refers to a patented case sealing method developed by watch case manufacturer Ervin Piquerez S.A. ([[EPSA]]). The design takes advantage of the water pressure the case is exposed to at depth to press the case back against the o-ring seal . More depth equals more water pressure equals greater seal. Dual crown
	Super-Compressor watches typically have a depth rating of 600 ft. This same concept was employed by Omega in the Naiad crowns used on Seamaster 300 watches in the ‘60s. Well regarded as being very high quality and watertight, EPSA manufactured the S-C cases in a variety of styles from the late '50s until bankruptcy closed the business in the mid-'70s. The fact that so many survive today is a testament to their quality.		Super-Compressor watches typically have a depth rating of 600 ft. This same concept was employed by Omega in the Naiad crowns used on Seamaster 300 watches in the ‘60s. Well regarded as being very high quality and watertight, EPSA manufactured the S-C cases in a variety of styles from the late '50s until bankruptcy closed the business in the mid-'70s. The fact that so many survive today is a testament to their quality.

Richard at 12:58, 10 June 2020

2020-06-10T12:58:52Z

← Older revision		Revision as of 14:58, 10 June 2020
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			[[File:EPSA patent.png\|thumb]]
	==EPSA Super-Compressor==		==EPSA Super-Compressor==