{"id":15588,"date":"2026-11-04T11:00:00","date_gmt":"2026-11-04T04:00:00","guid":{"rendered":"https:\/\/thanhtamwatch.com\/?p=15588"},"modified":"2026-11-03T19:22:41","modified_gmt":"2026-11-03T12:22:41","slug":"dong-ho-vintage-annual-perpetual-calendar","status":"publish","type":"post","link":"https:\/\/thanhtamwatch.com\/en\/dong-ho-vintage-annual-perpetual-calendar\/","title":{"rendered":"VINTAGE CLOCKS: HOW ARE ANNUAL CALENDARS AND PERPETUAL CALENDARS DIFFERENT?"},"content":{"rendered":"
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\u0110\u1ed3ng h\u1ed3 vintage h\u1ea5p d\u1eabn ng\u01b0\u1eddi ch\u01a1i b\u1edfi thi\u1ebft k\u1ebf mang d\u1ea5u \u1ea5n th\u1eddi gian v\u00e0 nh\u1eefng c\u01a1 ch\u1ebf c\u01a1 kh\u00ed b\u00ean trong. Trong \u0111\u00f3, Annual Calendar (l\u1ecbch th\u01b0\u1eddng ni\u00ean) v\u00e0 Perpetual Calendar (l\u1ecbch v\u1ea1n ni\u00ean) l\u00e0 hai complication ti\u00eau bi\u1ec3u. V\u1eady ch\u00fang kh\u00e1c nhau \u1edf \u0111i\u1ec3m n\u00e0o?<\/span><\/p>

1. Annual Calendar – L\u1ecbch th\u01b0\u1eddng ni\u00ean<\/span><\/strong><\/h2>

Annual Calendar t\u1ef1 ph\u00e2n bi\u1ec7t c\u00e1c th\u00e1ng c\u00f3 30 v\u00e0 31 ng\u00e0y. Ng\u01b0\u1eddi \u0111eo kh\u00f4ng c\u1ea7n ch\u1ec9nh l\u1ecbch v\u00e0o cu\u1ed1i th\u00e1ng 4, 6, 9 v\u00e0 11. Tuy nhi\u00ean, c\u01a1 ch\u1ebf n\u00e0y ch\u01b0a nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u00e0i th\u00e1ng 2, v\u00ec v\u1eady c\u1ea7n hi\u1ec7u ch\u1ec9nh m\u1ed9t l\u1ea7n m\u1ed7i n\u0103m sau khi th\u00e1ng n\u00e0y k\u1ebft th\u00fac.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\"\u0110\u1ed2NG\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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2. Perpetual Calendar – L\u1ecbch v\u1ea1n ni\u00ean<\/span><\/strong><\/h2>

Perpetual Calendar c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u1ed9 d\u00e0i th\u00e1ng 2 v\u00e0 chu k\u1ef3 n\u0103m nhu\u1eadn. C\u01a1 ch\u1ebf n\u00e0y ph\u00e2n bi\u1ec7t th\u00e1ng 2 c\u00f3 28 ng\u00e0y trong n\u0103m th\u01b0\u1eddng v\u00e0 29 ng\u00e0y trong n\u0103m nhu\u1eadn, nh\u1edd \u0111\u00f3 t\u1ef1 \u0111i\u1ec1u ch\u1ec9nh l\u1ecbch m\u00e0 kh\u00f4ng c\u1ea7n hi\u1ec7u ch\u1ec9nh h\u1eb1ng n\u0103m.<\/span><\/p>

Kh\u1ea3 n\u0103ng n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o n\u00ean b\u1edfi h\u1ec7 th\u1ed1ng chi ti\u1ebft c\u01a1 kh\u00ed ph\u1ed1i h\u1ee3p v\u1edbi nhau, g\u1ed3m b\u00e1nh xe, cam v\u00e0 \u0111\u00f2n b\u1ea9y. V\u1edbi ng\u01b0\u1eddi y\u00eau th\u00edch \u0111\u1ed3ng h\u1ed3 vintage, Perpetual Calendar l\u00e0 complication \u0111\u00e1ng ch\u00fa \u00fd b\u1edfi \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 gi\u00e1 tr\u1ecb k\u1ef9 thu\u1eadt trong ch\u1ebf t\u00e1c. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i m\u1ecdi m\u1eabu \u0111\u1ed3ng h\u1ed3 vintage \u0111\u1ec1u s\u1edf h\u1eefu c\u01a1 ch\u1ebf l\u1ecbch n\u00e0y.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\"\u0110\u1ed2NG\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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3. Annual Calendar v\u00e0 Perpetual Calendar kh\u00e1c nhau \u1edf \u0111\u00e2u?<\/span><\/strong><\/h2>

Hai c\u01a1 ch\u1ebf c\u00f3 ba \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh:<\/span><\/strong><\/p>