Damasko DA36 Tests 1 (2019) - John's Vademecum

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====== Damasko DA36 Tests 1 (2019) ======
Created Thursday 31 October 2019

===== Investigation into fault last seen Aug 2018 =====

Fault symptoms from 30/8/18

  * rate error high (> 30s/d) and dependant on position
  * amplitude low ≤200°
  * hand-winding would not increase amplitude or improve random fluctuating rate.

==== Investigation to confirm fault prior to arranging repair : 30/10/19 ====

  * wind 40 turns manually & set time: Δ = -0.7s
  * on wrist 19:00
  * take TG measurements as auto power builds up over evening

==== Reference Values for comparison to "Normal" behaviour ====

Last known full set of amplitude / rate measurements:

<code>
16/12/17
Dial up	: 274° : 0
Dial dn	: 278° : 0
6H	: 256° : -6	: D = -6
3H	: 263° : 0
9H	: 262° : -2
12H	: 261° : +4
Mean	: -0.7

</code>

Last known good "full power" TG rate measurements:

<code>
8/3/18 13:30
Dial up	: 291°	: +1
Dial dn	:	: 0
6H	:	: -3	D = -4
3H	:	: +2
9H	:	: 0
12H	:	: +1
Mean	: +0.7

</code>

==== TG measurements 1st day 30/10/19 ====

<code>
19:25
Dial up : 231° : -11

20:15
Dial up : 271° : -3
Dial dn : 263° : -3

21:15
Dial up : 282° : -1
Dial dn : 271° : 0

22:15
Dial up : 270° : -2
Dial dn : 259° : -1
6H	: 252° : -6	: D = -4
3H	: 257° : 0
9H	: 241° : -3
12H	: 262° : +1
Mean	: -1.8

23:15
Dial up : 287° : 0
Dial dn : 263° : 0
6H	: 249° : -7	: D = -7
3H	: 271° : 0
9H	: 261° : -3
12H	: 266° : +1
Mean	: -1.5


00:15
Dial up : 302° : 0
Dial dn : 295° : 0
6H	: 260° : -6	: D = -6
3H	: 278° : 0
9H	: 271° : 0
12H	: 291° : +1
Mean	: +0.8

</code>


==== TG measurements 2nd day 31/10/19 ====

<code>
06:10
Dial up : 272° : -2
Dial dn : 282° : 0
6H	: 249° : -7	: D = -5
3H	: 260° : 0
9H	: 261° : -2
12H	: 259° : +3
Mean	: -1.3


07:10
Dial up : 276° : 0
Dial dn : 275° : +1
6H	: 249° : -5	: D = -5
3H	: 266° : +1
9H	: 252° : -4
12H	: 252° : +2
Mean	: -0.8

08:30
Dial up : 275° : 0
Dial dn : 274° : +2
6H	: 258° : -5	: D = -5
3H	: 264° : +1
9H	: 256° : -1
12H	: 257° : +4
Mean	: -0.16

09:35
Dial up : 279° : -1
Dial dn : 281° : +1
6H	: 266° : -4	: D = -3
3H	: 270° : +1
9H	: 261° : -3
12H	: 267° : +4
Mean	: -0.33

10:30
Dial up : 265° : -2
Dial dn : 261° : 0
6H	: 240° : -8	: D = -6
3H	: 248° : -1
9H	: 236° : -5
12H	: 259° : +3
Mean	: -2.3

13:10
Dial up : 283° : 0
Dial dn : 276° : 0
6H	: 262° : -3	: D = -3
3H	: 258° : +2
9H	: 248° : 0
12H	: 259° : +4
Mean	: +0.5

14:55
Dial up : 278° : -2
Dial dn : 275° : -1
6H	: 257° : -7	: D = -5
3H	: 266° : 0
9H	: 257° : -1
12H	: 266° : +2
Mean	: -1.6

17:10
Dial up : 288° : 0
Dial dn : 277° : 0
6H	: 264° : -3	: D = -3
3H	: 268° : 0
9H	: 261° : -4
12H	: 269° : +2
Mean	: -0.8

21:30
Dial up : 272° : -2
Dial dn : 277° : -1
6H	: 252° : -8	: D = -6
3H	: 262° : -1
9H	: 256° : -4
12H	: 277° : +1
Mean	: -1.8
</code>


==== TG measurements 3rd day 1/11/19 ====

<code>
06:00
Dial up : 262° : +1
Dial dn : 260° : +3
6H	: 248° : -4	: D = -5
3H	: 257° : +3
9H	: 251° : 0
12H	: 251° : +7
Mean	: +1.6

16:35
Dial up : 283° : 0
Dial dn : 283° : 0
6H	: 271° : -5	: D = -5
3H	: 271° : 0
9H	: 264° : 0
12H	: 279° : +1
Mean	: -0.6

</code>
==== TG measurements 4rd day 2/11/19 ====

<code>
07:45
Dial up : 260° : +1
Dial dn : 268° : +4
6H	: 245° : -5	: D = -6
3H	: 250° : +1
9H	: 249° : 0
12H	: 251° : +3
Mean	: -0.6

16:15
Dial up : 294° : -1
Dial dn : 293° : 0
6H	: 268° : -5	: D = -6
3H	: 266° : 0
9H	: 273° : -2
12H	: 273° : +1
Mean	: -1.6

19:30
Dial up : 299° : -1
Dial dn : 298° : 0
6H	: 267° : -5	: D = -4
3H	: 267° : 0
9H	: 273° : -4
12H	: 272° : +1
Mean	: -1.5
</code>


==== TG measurements 5th day 3/11/19 ====

<code>
07:00
Dial up : 258° : +1
Dial dn : 264° : +6
6H	: 251° : -1	: D = -2
3H	: 255° : +1
9H	: 254° : 0
12H	: 251° : +3
Mean	: +1.6

16:10
Dial up : 291° : 0
Dial dn : 281° : 0
6H	: 271° : -4	: D = -4
3H	: 264° : 0
9H	: 259° : -2
12H	: 271° : +3
Mean	: -0.5

21:00
Dial up : 289° : -1
Dial dn : 278° : 0
6H	: 261° : -5	: D = -4
3H	: 262° : 0
9H	: 258° : -1
12H	: 260° : +2
Mean	: -0.8


</code>
==== TG measurements 6th day 4/11/19 ====

<code>
06:15
Dial up : 264° : +1
Dial dn : 256° : +3
6H	: 240° : -5	: D = -6
3H	: 249° : 0
9H	: 256° : 0
12H	: 248° : +4
Mean	: +0.5

11:25
Dial up : 292° : 0
Dial dn : 283° : +1
6H	: 267° : -4	: D = -4
3H	: 277° : +1
9H	: 262° : -1
12H	: 268° : +3
Mean	: +0.0


</code>
===== Amplitude vs Position vs Mean Rate =====

	Date     	Time		Du	Dd	6h	3h	9h	12h	Av	M
	=============================================================================================	
	30/10/19 	22:15		270	259	252	257	241	262	257	-1.8	
	30/10/19 	23:15		287	263	249	271	261	266	266	-1.5

	31/10/19 	00:15		302	295	260	278	271	291	283	+0.8	
	31/10/19 	06:10		272	282	249	260	261	259	263	-1.3
	31/10/19 	07:10		276	275	249	266	252	252	262	-0.8
	31/10/19 	08:30		275	274	258	264	256	257	263	+0.2
	31/10/19 	09:35		279	281	266	270	261	267	271	-0.3
	31/10/19 	10:30		265	261	240	248	236	259	252	-2.3
	31/10/19 	13:10		283	276	262	258	248	259	264	+0.5
	31/10/19 	14:55		278	275	257	266	257	266	267	-1.6
	31/10/19 	17:10		288	277	264	268	261	269	271	-0.8
	31/10/19 	21:30		272	277	252	262	256	277	266	-1.8

	01/11/19 	06:00		262	260	248	257	251	251	255	+1.6
	01/11/19 	16:35		283	283	271	271	264	279	275	-0.6
	
	02/11/19 	07:45		260	268	245	250	249	251	254	+0.6
	02/11/19	16:15		294	293	268	266	273	273	279	-1.6
	02/11/19	19:30		299	298	267	267	273	272	279	-1.5
	
	03/11/19	07:00		258	264	251	255	254	251	256	+1.6
	03/11/19	16:10		291	281	271	264	259	270	273	-0.5
	03/11/19	21:00		289	278	261	262	258	260	268	-0.8
	
	04/11/19	06:15		264	256	240	249	256	248	252	+0.5
	04/11/19	11:25		292	283	267	277	262	268	275	+0.0




===== Watchcheck data =====

<code>
Date		Time	Δ(s)	Error(s/d)	Ave(s/d)	Comment
31/10/19 	06:17 	-2.2
01/11/19 	06:06 	-4.2	-2.0		-2.0		Dial up overnight
02/11/19 	07:43	-6.7	-2.3		-2.2		Dial up overnight
03/11/19 	06:54	-7.5	-0.8		-1.8		Dial down overnight
04/11/19	06:32	-8.5	-1.0		-1.6		Dial down overnight


</code>
==== TimeGrapher Pseudo-COSC Test ====


16:00 1/11/19 (Full Power) & 07:45 2/11/19 (After overnight resting dial-up)
<code>
M1	-5
M2	-5	Mean 6H	: -5	V1 : 0
M3	+2
M4	+1	Mean 3H	: +1.5	V2 : 1
M5	0
M6	0	Mean 9H	: 0	V3 : 0
M7	+2
M8	+4	Mean DD	: +3	V4 : 2
M9	0
M10	+1	Mean DU : +0.5	V5 : 1
M11	n/a
M12	-5
</code>
<code>
                         Limit		
M	0	Pass	(+6/-4) 	Mean Daily Rate			: Ave of M1..M10
Vavg	0.8	Pass	(2)		Mean Variation			: Ave of V1..V5
Vmax	2	Pass	(5)		Max Variation 			: Max of V1..V5
D	-5.5	Pass*	(+8/-6) 	Difference Vert-Horiz		: Ave of M1..M2 minus Ave of M9..M10
P	5	Pass	(10)		Largest Variation from mean	: Value of M1.. M10 with largest difference from overall M
R	+0	Pass	(+5/-5) 	Rate Resumption			: M12 minus Ave of M1..M2 
</code>



==== Power Reserve Test ====

Start fully wound  : "day 0"

Put on Timegrapher, dial up, to observe rate/amplitude during period of test


__ETA 2836-2 spec = 38 hours__



  Off wrist date time 	:	04/11/19	11:35
  Stopped date time	:	05/11/19	21:27
  Elapsed time		:	33:52


TG Checks during Power Reserve test, Dial Up

<code>	
Date		Time	Elapsed	Amp	Rate	Δ-NTP
04/11/19	11:35	0:00	279	0	-8.5
04/11/19	14:35	3:00	270	+1		
04/11/19	17:35	6:00	271	0
04/11/19	21:10	8:35	260	0
04/11/19	23:20	11:45	251	0
05/11/19	06:20	18:45	243	0
05/11/19	08:35	21:00	233	-1
05/11/19	09:30	21:55	234	-1	-9.4
05/11/19	13:55	26:20	213	-6
05/11/19	15:00	27:25	212	-7	-10.9
05/11/19	16:45	29:10	203	-10
05/11/19 	17:35	30:00	198	-12
05/11/19	18:35	31:00	191	-14
05/11/19	19:35	32:00	179	-19	-13.3
05/11/19	20:35	33:00	168	-27
05/11/19	21:27	33:52	STOPPED....

Power reserve	:	33:52
</code>
====== DA36Measurements ======
Created Friday 08 November 2019


==== 8 November 2019 ====



		08/11/19 : 06:15
		Dial up : 254° : -1
		Dial dn : 261° : +4
		6H	: 243° : -6
		3H	: 237° : -1
		9H	: 222° : -6
		12H	: 226° : 0
		D 	: -5
		Mean	: 241° : -1.6

		08/11/19 : 12:45
		Dial up : 284° : 0
		Dial dn : 281° : +1
		6H	: 266° : -3	
		3H	: 263° : 0
		9H	: 259° : -1
		12H	: 266° : +3
		D 	: -3
		Mean	: 270° : 0

		08/11/19 : 23:20
		Dial up : 280° : -2
		Dial dn : 277° : 0
		6H	: 260° : -3	
		3H	: 261° : 0
		9H	: 254° : -2
		12H	: 259° : +3
		D 	: -1
		Mean	: 265° : 0



==== 9th November 2019 ====


	09/11/19 : 06:50
	Dial up : 256° : +1
	Dial dn : 254° : +3
	6H	: 230° : -7	
	3H	: 227° : -4
	9H	: 234° : -2
	12H	: 227° : +1
	D 	: -8
	Mean	: 238° : -1.3

	09/11/19 : 13:10
	Dial up : 281° : 0
	Dial dn : 282° : 0
	6H	: 264° : -4	
	3H	: 263° : 0
	9H	: 268° : 0
	12H	: 260° : +3
	D 	: -4
	Mean	: 270° : -0.2

	09/11/19 : 23:00
	Dial up : 286° : -2
	Dial dn : 280° : 0
	6H	: 260° : -6	
	3H	: 256° : -2
	9H	: 272° : 0
	12H	: 263° : +1
	D 	: -4
	Mean	: 270° : -1.5


		

==== 10th November 2019 ====


	10/11/19 : 07:05
	Dial up : 251° : 0
	Dial dn : 246° : +1
	6H	: 232° : -8	
	3H	: 220° : -8
	9H	: 230° : -3
	12H	: 230° : 0
	D 	: -8
	Mean	: 236° : -3

	10/11/19 : 14:20	
	Dial up : 256° : -4
	Dial dn : 248° : -5
	6H	: 233° : -13	
	3H	: 228° : -6
	9H	: 227° : -8
	12H	: 226° : -5
	D 	: -9
	Mean	: 236° : -6.8

	Wound manually 40 turns:
	
	Dial up	: 238°	: -5
	Dial dn	: 234°	: -6
	6H	: 225° 	: -14

Amplitude still low.....

Wound manually > 100 turns:
		
	Dial up : 263° : -1
	Dial dn : 264° : 0
	6H	: 244° : -9	
	3H	: 245° : -3
	9H	: 256° : -2
	12H	: 249° : 0
	D 	: -8
	Mean	: 253° : -5.0

Rate improved but amplitude still low - can't achieve "full wind power"?

	10/11/19 : 16:30
	Dial up : 274° : 0
	Dial dn : 259° : 0
	6H	: 238° : -9	
	3H	: 250° : -2
	9H	: 245° : -3
	12H	: 242° : 0
	D 	: -9
	Mean	: 251° : -2.3

Back to on-wrist for further observations @ 16:50




==== Amplitude vs position vs mean rate error ====

	

		Date     	Time		Du	Dd	6h	3h	9h	12h	Av	M	
		============================================================================================
		08/11/19	06:15		254	261	243	237	222	226	241	-1.6
		08/11/19	12:45		284	281	266	263	259	266	270	+0.0
		08/11/19	23:20		280	277	260	261	254	259	265	+0.0	

		09/11/19	06:50		256	254	230	227	234	227	238	-1.3
		09/11/19	13:10		281	282	264	263	268	260	270	-0.2
		09/11/19	23:00		286	280	260	256	272	263	270	-1.5
		
		10/11/19	07:05		251	246	232	220	230	230	236	-3.0
		10/11/19	14:20		256	248	233	228	227	226	236	-6.8 !!!!!
		10/11/19	16:30		274	259	238	250	245	242	251	-2.3
		10/11/19	17:30		286	281	265	268	259	263	270	-1.
		10/11/19	19:10		259	269	248	249	260	253	256	-1.8
		10/11/19	21:00		293	284	264	260	266	267	272	-2.5
		10/11/19	23:00		270	277	266	250	261	252	262	-3.0

	

Over to [[DA36Tests2]]	

==== Dial-Up Amplitude & Rate ====


	Date		Time	Amp.	Rate
	=====================================
	08/11/19	06:15	254	-1
	08/11/19	12:45	284	0	
	08/11/19	15:40	281	0
	08/11/19	17:00	272	0
	08/11/19	23:20	280	-2

	09/11/19	06:50	256	+1
	09/11/19	10:40	270	-1
	09/11/19	13:10	281	0
	09/11/19	20:30	288	-1
	09/11/19	23:00	286	-2
	
	10/11/19	07:05	251	0
	10/11/19	10:10	267	-3
	10/11/19	14:20	256	-4 !!! Low amplitude all positions after several hours on wrist.

	
	

Goto [[DA36Tests2]] 

==== Watchcheck measurements ====

	
	
	Android Watchcheck (one per day to show overall rate):

	Date		Time	Δ(s)	Error(s/d)	Ave(s/d)	Comment
	=======================================================================================

	08/11/19	06:24	-7.7	-1.6		-2.0		overnight dial down
	09/11/19	07:04	-9.5	-1.7		-1.9		overnight dial down
	10/11/19	07:02	-11.9	-2.4		-2.1		overnight dial down
	11/11/19	06:25	-14.1	-2.3		-2.1		overnight dial up
	
	
	Python Watchcheck (2 per day to show difference between on-wrist and resting position):
	
	dd/mm/yyyy HH:MM:SS	Δ(s)        Error(s/d)       Ave(s/d)	Comment
	===================================================================

	08/11/2019 06:25:07     -7.8            +3.6            -1.3	Nighttime dial down = positive
	08/11/2019 23:19:10     -10.3           -3.6            -2.0 	daytime on wrist = negative
	09/11/2019 07:05:09     -9.5            +2.6            -1.4	Nighttime dial down = positive
	09/11/2019 23:05:12     -12.6           -4.8            -2.1	Daytime on wrist = negative
	10/11/2019 07:03:11     -11.6           +3.1            -1.6	Nighttime dial down = positive
	10/11/2019 23:10:14     -14.2           -3.8            -2.0 	Daytime worn = negative
	11/11/2019 06:23:14     -14.1           +0.1            -1.8 	Dial Up overnight. Zero
	

@watches


===== Post Power Test Measurements =====


Return to wrist and allow to reach adequate auto-winding power.
Set time & take new Watchcheck reading once amplitude and rate have settled.

	

	21:50 On wrist
	
	22:00
	Dial up : 235° : -15
	Dial dn : 221° : -17
	6H	: 214° : -21	: D = -6
	3H	: 229° : -15
	9H	: 225° : -16
	12H	: 220° : -19
	Mean	: -17
	
	* worn overnight in bed - MINIMAL ADDITIONAL AUTO-WINDING? *
	
	

	

=== Day 1 6/11/19 ===


	
	06:00 	
	Dial up : 226° : -10
	Dial dn : 233° : -10
	6H	: 214° : -20	: D = -10
	3H	: 235° : -7
	9H	: 210° : -15
	12H	: 223° : -6
	Mean	: -11
	
	12:15 	
	Dial up : 265° : -1
	Dial dn : 252° : 0
	6H	: 242° : -7	: D = -6
	3H	: 241° : -1
	9H	: 238° : -4
	12H	: 249° : +1
	Mean	: -2
	
	15:50	 	
	Dial up : 289° : 0
	Dial dn : 276° : 0
	6H	: 259° : -6	: D = -6
	3H	: 267° : 0
	9H	: 273° : -1
	12H	: 269° : +1
	Mean	: -1
	
	19:50	 	
	Dial up : 277° : 0
	Dial dn : 283° : 0
	6H	: 254° : -6	: D = -6
	3H	: 251° : -2
	9H	: 241° : -3
	12H	: 266° : +4
	Mean	: -1.5


=== Day 2 7/11/19 ===


	06:00	 	
	Dial up : 260° : +1
	Dial dn : 252° : +4
	6H	: 241° : -4	: D = -5
	3H	: 230° : -4
	9H	: 199° : -17	********
	12H	: 200° : -11    ********
	Mean	: -5.2
	
	07:00	 	
	Dial up : 270° : -1
	Dial dn : 260° : 0
	6H	: 246° : -7	: D = -6
	3H	: 245° : -2
	9H	: 240° : -5
	12H	: 245° : 0
	Mean	: -2.5
	
	09:20	 	
	Dial up : 284° : -1
	Dial dn : 281° : +1
	6H	: 269° : -2	: D = -1
	3H	: 265° : +1
	9H	: 265° : 0
	12H	: 261° : +3
	Mean	: +0.3
	
	21:30		 	
	Dial up : 287° : -2
	Dial dn : 281° : 0
	6H	: 254° : -6	: D = -4
	3H	: 262° : -1
	9H	: 265° : -2
	12H	: 261° : +2
	Mean	: -1.5


=== Day 3 8/11/19 ===



	06:15
	Dial up : 254° : -1
	Dial dn : 261° : +4
	6H	: 243° : -6	: D = -5
	3H	: 237° : -1
	9H	: 222° : -6
	12H	: 226° : 0
	Mean	: -1.6

	12:45
	Dial up : 284° : 0
	Dial dn : 281° : +1
	6H	: 266° : -3	: D = -3
	3H	: 263° : 0
	9H	: 259° : -1
	12H	: 266° : +3
	Mean	: 270° : 0


	
	


	Date     	Time		Du	Dd	6h	3h	9h	12h	Av	M
	=============================================================================================
	06/11/19	06:30		226	233	214	235	210	223	223	-11.0
	06/11/19	12:15		265	252	242	241	238	249	248	-2.0
	06/11/19	15:50		289	276	259	267	273	269	272	-1.0
	06/11/19	19:50		277	283	254	251	241	266	262	-1.5
	
	07/11/19	06:00		260	252	241	230	199!!	200!!	230	-5.2
	07/11/19	07:00		270	260	246	245	240	245	251	-2.5
	07/11/19	09:20		284	281	269	265	265	261	271	+0.3
	07/11/19	21:30		287	281	254	262	265	261	268	-1.5
	
	08/11/19	06:15		254	261	243	237	222	226	241	-1.6
	08/11/19	12:45		284	281	266	263	259	266	270	+0.0
	
	
	
	
	Android Watchcheck:

	Date		Time	Δ(s)	Error(s/d)	Ave(s/d)	Comment
	=======================================================================================
	06/11/19 	06:41 	-3.6					New period started
	06/11/19	12:32	-5.4	-7.4		-7.4		after ~6 hours
	06/11/19	20:02	-6.2	-2.5		-4.6		after further 7.5 hours
	07/11/19	05:55	-6.1	+0.2		-2.6		overnight dial down
	08/11/19	06:24	-7.7	-1.6		-2.0		overnight dial down
	
	
	
	Python Watchcheck:
	
	dd/mm/yyyy HH:MM:SS	Δ(s)        Error(s/d)       Ave(s/d)	Comment
	===================================================================
	06/11/2019 20:22:06     -6.2            -2.5            -2.5	Daytime = negative
	07/11/2019 05:56:06     -6.1            +0.3            -0.8	Nighttime dial down = positive
	08/11/2019 00:36:08     -8.6            -3.3            -2.1	Daytime = negative
	08/11/2019 06:25:07     -7.8            +3.6            -1.3	Nighttime dial down = positive
	

===== Conclusion =====


There seems to be nothing wrong.

4 full days of on-wrist testing shows normal amplitude and rate error.

Power-run-down test gives a reserve time of ≥33 hours. This is less than the ETA 2836-2 spec of 38 hours. This may be due to starting the test with less than full wind? 33 hours is still acceptable. Rate and amplitude drops after 24 hours, but accumulated error is still acceptable if the test had been stopped before completion and the watch worn (an additional ~5 seconds of loss over the 33 hours of testing).

__Restarting and achieving full-power/amplitude & normal rate error takes some time on-wrist - avoiding manually winding as far as possible, just enough to start the movement running. Is there still an intermittent problem with the winding or power?__

Time will tell.

Further monitoring under [[DA36Measurements]] 










Page Updated: ~~LASTMOD~~

{{tag>watch damasko}}
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