A. LANGE & SÖHNE GRAND LANGE 1
Case: 41mm diameter x 8.2mm height - 18k white gold or 18k pink gold case, brushed and polished - sapphire crystals front and caseback - water-resistant (no depth mentioned)
Dial: solid silver base, grained finishing - snailed sub-dials - applied markers and hands in 18k white gold or 18k pink gold
Movement: calibre L095.1 - in-house - hand-wound - 397 parts, 42 jewels incl. 7 in screwed gold chatons - 34.1mm x 4.7mm - in-house balance spring and screwed balance beating at 3Hz - 72-hour power reserve - hours, minutes, small seconds, power reserve indicator, outsize date with push-piece rapid corrector
Strap: hand-stitched leather strap in black or red-brown - 18k white gold or 18k pink gold prong buckle
References:
137.038 white gold
137.033 pink gold