Crystal Prism
BM-589-L
PRODUCT DESCRIPTION
Series: Crystal Prism
Movement: Automatic Mechanical Movement
Case Size: 45×55×15 mm
Case Water Resistance: 5 ATM
Case Material: Sapphire crystal
Case Color: Transparent
Dial Color: Blue
Crystal Type: Sapphire
Strap Material: Fluorine Rubber
Strap Color: White
Strap Width: 20 mm
Closure: 2 Pusher Foldover Clasp
Strap Circumference: 200 ±5 mm
SHIPPING & TRACKING
Free shipping service is available for orders over $50.00 USD.
BTOMIC will select logistics service providers based on the delivery location, including but not limited to: YunExpress, DHL, FedEx, USPS, 4PX. The ordinary delivery time is 7-10 days.
Customers can track their orders on the page provided by BTOMIC, or seek help from the After-sale Service Team.
The Art Of Visualizing Time
Inspired by the art of visualizing time, the design frees itself from metal constraints, revealing pure mechanical beauty through a transparent barrel-shaped case showcasing the movement’s rhythm.
Skeleton Dial
A fully skeletonized dial, where metallic grey and deep black layers meet, silver skeleton hands hover above, and gears and springs mesh in perfect harmony.
Transparent Case
The transparent tonneau-shaped case, crafted from premium sapphire crystal, delivers outstanding clarity and scratch resistance, allowing the intricate mechanical structure to be fully revealed.
Precision Movement
Equipped with a variable inertia balance wheel, precisely regulated for a daily rate within ±5 seconds. The manual winding system’s high-efficiency gear train delivers approximately 72 hours of power reserve.
Fluoroelastomer Strap
The highly elastic fluororubber strap is soft and skin-friendly, breathable and comfortable, perfectly balancing excellent sports performance and urban style.
Ultra Luminous
The hands and scales are covered with high-intensity Class A luminous coating, allowing for clear reading even in the dark.











