Mechanical Moon Phase Hand-WindingM45 F8 RK-BW0001S

ORIENT STAR M45 F8 Mechanical Moon Phase Hand-winding RK-BW0001S The ORIENT STAR M45 F8 Mechanical Moon Phase Hand-winding RK-BW0001S is a high-end model that combines the charm of a hand-wound mechanical movement with a moon phase mechanism that beautifully depicts the waxing and waning of the moon. The white dial is paired with blue leaf-shaped hands, giving it a classic yet clean appearance. The dial features a finely radial finish and thick clear coating, allowing you to enjoy a lustrous, deep texture.

Moon Phase Display: The Moon Floating in the Silence of the Night A major appeal of the RK-BW0001S is the moon phase display on the dial. Against a starry night sky, the mother-of-pearl moon motif is delicately expressed. More than just a practical lunar calendar function, this timepiece allows you to enjoy the romance and poetic beauty of a mechanical watch, true to the ORIENT STAR style, right on your wrist. Hand-winding Caliber F8A62 It is equipped with the in-house hand-wound movement, Caliber F8A62.

This highly refined specification allows you to enjoy the sensation of winding a mechanical watch by hand, the feeling of the mainspring accumulating power, and the sight of the movement ticking away. Unlike automatic movements, hand-winding offers a quiet ritualistic quality, making it ideal for those who want to enjoy the time they spend interacting with their watch every day. Over 70 Hours of Long Power Reserve Caliber F8A62 features a long power reserve of over 70 hours.

If fully wound, it is less likely to stop even if left unworn over the weekend, offering practical usability for daily wear despite being hand-wound. Furthermore, it is equipped with a power reserve indicator, allowing you to check the remaining mainspring power at a glance. This specification balances the joy of using a mechanical watch with the reliability of a practical timepiece. Equipped with a Silicon Escapement Wheel This model incorporates a silicon escapement wheel developed in-house by ORIENT STAR.

By using lightweight and highly precise components, energy efficiency is enhanced, contributing to the driving time of over 70 hours. The integration of modern technology with the charm of traditional mechanical watches is another highlight unique to the M45 F8 series. SUS316L Stainless Steel Case and Crocodile Band The case is made of highly corrosion-resistant SUS316L stainless steel.

With a case diameter of 39.5mm and a thickness of 11.9mm, it has a presence befitting a moon phase model while fitting comfortably on the wrist. The black crocodile band enhances the elegant atmosphere of the white dial and blue hands. It is a classic timepiece suitable for both business and formal occasions.

Mechanical Movement Visible Through a See-through Case Back The case back features a sapphire crystal see-through design, allowing you to admire the precise mechanical structure of Caliber F8A62 when the watch is off your wrist. This model satisfies watch enthusiasts by offering the poetic expression of the moon phase on the dial side and the structural beauty of the mechanical movement on the reverse side.

CONTÉVANOU, an Authorized ORIENT STAR Retailer and Prestige Shop in Yoyogi, Tokyo CONTÉVANOU, an authorized retailer of watches and jewelry near Yoyogi, Hatsudai, and Tokyo Opera City in Tokyo, is an authorized ORIENT STAR retailer and Prestige Shop. At the store, you can experience the ORIENT STAR mechanical watches firsthand, including the M45 F8 Mechanical Moon Phase Hand-winding. Please visit us to feel the beauty of the moon phase, the sensation of hand-winding, the case size, and the texture of the dial.

Recommended Features Moon phase display showing the waxing and waning of the moon Moon motif made with mother-of-pearl Equipped with in-house hand-wound Caliber F8A62 Over 70 hours of long power reserve Uses a silicon escapement wheel Power reserve indicator function Elegant combination of white dial and blue leaf-shaped hands Available for in-store viewing at an authorized ORIENT STAR retailer in Yoyogi, Tokyo Specifications Brand ORIENT STAR Model M45 F8 Mechanical Moon Phase Hand-winding Model Number RK-BW0001S Movement Mechanical Caliber F8A62 Winding Method Hand-winding Accuracy +15 seconds to -5 seconds per day Power Reserve Over 70 hours Jewels 20 jewels Dial Color White Case Material Stainless steel (SUS316L) Case Size 46.7mm (vertical) × 39.5mm (horizontal) × 11.9mm (thickness) Case Back See-through back / Screw case back Crystal Material Dual-curved sapphire crystal (SAR coating) Case Back Crystal Sapphire crystal Band Material Crocodile Band Color Black Band Width 20mm Clasp Push-button deployant clasp Wrist Size 150mm〜190mm Water Resistance Water resistant for daily use (3 ATM) Magnetic Resistance JIS Class 1 Weight 79g Main Functions Moon phase, power reserve indicator, silicon escapement wheel, see-through back Country of Origin Japan Release Date October 2025 Manufacturer Warranty 3 years + 1 year extension upon web registration Price ¥418,000 (tax included)