Seagull 8843G Off-Center Tourbillon Sky Astronomical Calendar So This is the Seagull Master Series Off-Center Tourbillon Starry Sky Dial Chinese Astronomical Calendar Art Men’s Manual Winding Mechanical Wristwatch Luxury Top Brand Watch 43mm 218.32.8843G Seagull 8843G Off-Center Tourbillon Sky Astronomical Calendar Product Information Model Number: 218.32.8843G So Warranty: 3 Years Net Weight: 96g SO Packing Box: Carton Movement: ST8242 Number of Jewels: 38 Movement Frequency: 21600 Winding Mode: Manual Winding Case Material: 316L Stainless Steel plated in rose gold with inner ring 18K gold So Crystal Material: Synthetic Sapphire SO Case Thickness: Approx. 13mm Case Diameter: Approx. 43mm Case Shape: Round Strap Material: Leather Clasp: Pin Buckle Strap Length: Approx. 20cm Strap Width: Approx. 22mm Waterproof: 5 Bar Feature: Tourbillon, Calendar Packing List Seagull Off-Center Tourbillon 218.32.8843G*1 So Exclusive gift (please discuss with online service in detail) Exclusive Watch gift box*1 About Shipping So Use the highest level of security logistics services，Ensure the package that you signed personally Off-Center Tourbillon Sky Astronomical Calendar So Drawing inspiration from ancient Chinese astronomical traditions, this timepiece embodies the essence of celestial observation that guided timekeeping in imperial China. Its design pays homage to how ancient scholars tracked the movement of the Big Dipper (Ursa Major) to determine seasons, dates, and the 24 solar terms—transforming celestial mechanics into horological artistry. So The multi-function sub-dial integrates three concentric rings, each inspired by ancient Chinese celestial timekeeping: ◎Innermost Ring (Blue): Depicts the Big Dipper (Ursa Major), whose celestial movements guided traditional time observation. ◎Middle Ring: Features the 12 Traditional Chinese Hours (Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai),Because  marking the dual-hour divisions of the day. ◎Outermost Ring: Displays the 24 Solar Terms (Lichun, Yushui, Jingzhe… Dahan), China’s lunisolar calendar system that harmonizes agriculture with celestial cycles so. The watch case’s flank is engraved with China’s Twenty-Eight Lunar Mansions, grouped by their four celestial guardians So: ◎Azure Dragon of the East : Jiao (Horn), Kang (Neck), Di (Root), Fang (Chamber), Xin (Heart), Wei (Tail), Ji (Winnowing Basket) So ◎Black Tortoise of the North : Dou (Dipper), Niu (Ox), Nü (Maiden), Xu (Emptiness), Wei (Rooftop), Shi (House), Bi (Wall) So ◎White Tiger of the West : Kui (Legs), Lou (Bond), Wei (Stomach), Mao (Hairy Head), Bi (Net), Zi (Turtle Beak), Shen (Orion) So ◎Vermilion Bird of the South : Jing (Well), Gui (Ghost), Liu (Willow), Xing (Star), Zhang (Spread), Yi (Wings), Zhen (Chariot) So So Each constellation’s name reflects its ancient astrological symbolism, mirroring star maps used by Tang Dynasty imperial astronomers. The Seagull ST8242 Tourbillon Movement So Featuring an off-center axis design, this mechanism abandons the traditional regulator lever. Instead, it achieves precision timekeeping through two innovative systems: ◎Micro-adjustment screws along the balance wheel rim for fine-tuning ◎Rotatable eccentric weights that shift to calibrate the moment of inertia So This patented technology (Patent Name: Adjustable Balance Wheel for Watches, No. ZL200920250256.2) enables superior accuracy by directly controlling the balance wheel’s rotational dynamics ◎Synthetic Sapphire Crystal Dome,Mohs hardness 9 scratch-resistant surface ◎316L Stainless Steel Case,Rose gold-plated finish,18K gold inner bezel ◎Skeletonized Lugs,A contemporary reinterpretation of traditional lug architecture ◎Handcrafted Alligator Leather Strap,Deep blue hue for modern sophistication,Ergonomic design ensures superior wrist comfort Operating Instructions 1.Manual Winding: With crown in Position① , rotate clockwise to wind the mainspring. Big Dipper Adjustment: Gently pull crown to Position②，Rotate clockwise to align the celestial indicator. 2.Time Setting: Gently pull the crown to Position ③, then rotate to quick-adjust the hour/minute hands. P1 Hidden Button: Quick-adjusts the 12 Traditional Chinese Hours display.