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wow this has me stumped. i work on swiss trench watches too and AS is very common. I always see Calibers 168 and 137 occasionally a 158 but i have never seen this one. its reminds me of a cyma or tavannes cyma (TACY) movement, but it is clearly AS due to obvious logo and keyless works

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A.schild 625 I think also used by gruen as the 771 listed in best fit page 145 as a 13 ligne 771 is this quite a large size watch because the movement would be 29mm across if it is a 625

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On 3/28/2019 at 7:45 PM, wls1971 said:

A.schild 625 I think also used by gruen as the 771 listed in best fit page 145 as a 13 ligne 771 is this quite a large size watch because the movement would be 29mm across if it is a 625

625 seems a little different from the movement I have.. but I should definitely search near 625 movement. Thank you for your advice! 

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On 3/28/2019 at 5:32 PM, saswatch88 said:

wow this has me stumped. i work on swiss trench watches too and AS is very common. I always see Calibers 168 and 137 occasionally a 158 but i have never seen this one. its reminds me of a cyma or tavannes cyma (TACY) movement, but it is clearly AS due to obvious logo and keyless works

Oh may be this is a rare one...which also means it would be difficult to find spare parts :(

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