Very interesting Seiko Perpetual Calendar GMT from 2000. The movement is an in-house high grade 8F56 “GMT” osclillating at 196 kHz, allowing a +\/- 20 seconds drift a year.
\nThe current day is internally programmed (day, date, gap to the next leap year) but the movement only diplays the date. That means that it flips automatically to March 1st after February 28th or even after February 29th when in a leap year.<\/p>\n
The 42 mm case is in very good condition, the dial is flawless, as is the sapphire crystal.
\nThe bracelet is original and in good condition. It will suit a 18 cm wrist maximum.<\/p>\n
A new battery has just been fitted (it will last up to 10 years), the calendar reprogrammed. All functions are working.<\/p>\n
Vintage watch without known history but serviced (new battery, calendar reprogrammed), checked and cleaned (01\/2025). Water resistance not tested.
\nThe pictures are actual and are part of the description, so please look carefully at them.<\/p>\n","protected":false},"excerpt":{"rendered":"
Wonderful Seiko Perpetual Calendar GMT, fitted with a high grade 8F56 movement. New battery, original bracelet.<\/p>\n
1 year guarantee.<\/strong><\/p>\n <\/p>\n","protected":false},"featured_media":14331,"template":"","meta":{"_glsr_average":0,"_glsr_ranking":0,"_glsr_reviews":0},"product_brand":[780],"product_cat":[728,47,56],"product_tag":[653,759],"class_list":["post-14329","product","type-product","status-publish","has-post-thumbnail","product_brand-seiko","product_cat-500-2","product_cat-recently-added","product_cat-watches","product_tag-gmt","product_tag-rotating-bezel","pa_brand-seiko","pa_case-material-titanium","pa_colour-black","pa_diametre-42-mm","pa_frequency-196608-hz","pa_movement-seiko-8f56","pa_movement-type-analogic-quartz","pa_style-casual","pa_style-sports","pa_year-of-manufacture-541","post","post-with-thumbnail","post-with-thumbnail-large","first","outofstock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\n