LS Factory Audemars Piguet Royal Oak Offshore 26420 New Upgrade Version
Newly developed 43mm case (market versions are 44mm and typically reuse the older 26400 case). This version features a completely redesigned case with improved ergonomics and more refined finishing details. It includes larger polished bevels and precise proportions of 43mm × 15.6mm. The slightly larger case diameter is designed to better accommodate the upgraded movement.
Date function upgrade: after movement modification, the large date display is adjusted to match the original design more closely. The date window is pushed closer to the edge of the dial, and the hands have been slightly refined.
Movement: upgraded from DanDong 7750 (6 o’clock small seconds) to a modified Calibre 4401-style large bridge layout, offering improved aesthetics and more stable performance.
Case material: made of Japanese 316 stainless steel, providing a brighter and more refined metallic finish compared to standard 306 steel commonly used in the market.
Bezel: imported Korean ceramic bezel available in black, blue, and green. Sapphire crystal glass is used for the dial window.
Strap: imported fluororubber strap for enhanced comfort and better wearing experience. Leather versions use top-layer genuine leather, and fabric straps use composite leather-backed construction rather than pressed leather.
Dial upgrade: dial texture is CNC slow-milled(not hydraulic stamping), resulting in sharper and more defined pattern lines. The signature square pattern is redesigned with interconnecting cross structures for a more modern visual effect.




