Size: 42mm diameter x 11mm thick (like original)
Movement Type: Swiss Patek Philippe Calibre 324 automatic movement, (no battery needed for life).
Crystal: Scratch-proof sapphire crystal
Watchband Material: Black Leather watch bracelet
Buckle: Deployment Buckle with Proper Patek Philippe Engraving.
Watch Dial: Black dial
Case Material: 316L Stainless Steel,
Back-Case: Transparent Back Case
Astronomical Wristwatch with Sky Chart, Phases and Position of The Moon, and Time of Meridian Passage of Sirius.