Case material: Steel; Charge: Automatic; Conditions: New Presentation condition : With boxes and all papers; Model: Silverstone RS Price on request Gmtbroker Reference: 2STAC1.B01A this watch features: no doubt- one of the most sought after graham watches ever released. graham silverstone rs skeleton "red"edition in stainless steel 46mm black skeleton dial with amazing lateral porthole at 10 o'clock to admire escapement and balance wheel black ceramic (zro2) bezel with grey tachymeter scale. red knurled aluminum ring under the bezel,skeleton back chronograph automatic integrated black tyre tread rubber strap with red insert limited edition of only 250 pieces sport, distinctive and elegant among its novelties, graham has launched the silverstone skeleton rs (“red sport”) watch – 46 mm in diameter – in its collection. the graham silverstone rs skeleton "red"edition stainless steel chronograph automatic is a really nice watch with a cutting edge look. specifications: calibre * g1790, automatic skeleton chronograph with view on the balance wheel and escapement, 28'800 a/h (4hz), incabloc shock absorber * shaded grey and rhodium movement with hand-drawn strokes decoration * openwork balance bridge and plates * oscillating weight with hand-drawn strokes decoration and snailed external segment * 29 jewels * power reserve: 46 hours functions * automatic skeleton chronograph(seconds, 30 minutes counter) * hours, minutes, seconds case * 46 mm steel case with polished bevel horns * steel right hand control pushers