Markab
BA-643-BS
SPECIFICATIONS
Movement Type: Automatic
Movement Origin: Japan
Case Material: 316L Stainless Steel
Case Size: 43×43×12 mm
Water Resistance: 3 ATM
Strap Material: 316L Stainless Steel
Max Wrist Size: 215 mm
Strap Width: 20 mm
Buckle: Butterfly Clasp
SHIPPING & TRACKING
Free shipping service is available for all orders.
BTOMIC will select logistics service providers based on the delivery location, including but not limited to DHL, FedEx, UPS, local courier, etc. Standard delivery typically takes 3-12 days.
Customers can track their orders on the page provided by BTOMIC, or seek help from the After-sale Service Team.
Find Your Course.
Beyond the sight of land, navigators looked to the sky. Measuring the angular distance between the Moon and a known star helped them calculate a reference time—and, through it, their longitude.
Markab was one of those reference stars.
Inspired by this connection between time and position, MARKAB brings an instrument-like character to the wrist. A clearly marked bezel surrounds a dial of concentric scales and contrasting details, while an automatic movement sustains its daily rhythm.
A tribute to careful observation, considered judgement, and the confidence to choose your own course.
Three-Register Dial
A sunray finish sends light across the dial, revealing subtle changes in tone as the wrist moves. Raised hour markers frame three recessed sub-dials displaying the day, date, and 24-hour indication.
Contrasting rings separate each display from the surrounding surface, bringing depth and definition to a balanced, purposeful layout.
Automatic Movement
The natural movement of the wrist winds the mainspring, storing energy to power MARKAB’s automatic movement. A coordinated system of gears and springs drives the hands and calendar displays, translating mechanical motion into the rhythm of the day.
It is a tangible connection between the wearer’s movement and the passage of time.
Sculpted Stainless Steel Case
A circular bezel sits above brushed case surfaces, framed by polished edges that catch the light. Tapered lugs give the silhouette a defined shape, while the crown and two flanking pushers add a distinctly technical profile.
Bold perimeter markings complete the composition, giving MARKAB the visual character of a measuring instrument.
Integrated Bracelet
The bracelet continues the contours of the case, creating a unified silhouette from bezel to clasp. Broad brushed links are punctuated by polished centre elements, carrying the contrast of the case through the bracelet.
Seen as a whole, the design feels cohesive and deliberate. Each transition contributes to Aquamaster’s distinctive character, giving the watch a strong visual identity from every angle.
Three-Register Dial
A sunray finish sends light across the dial, revealing subtle changes in tone as the wrist moves. Raised hour markers frame three recessed sub-dials displaying the day, date, and 24-hour indication.
Contrasting rings separate each display from the surrounding surface, bringing depth and definition to a balanced, purposeful layout.
Automatic Movement
The natural movement of the wrist winds the mainspring, storing energy to power MARKAB’s automatic movement. A coordinated system of gears and springs drives the hands and calendar displays, translating mechanical motion into the rhythm of the day.
It is a tangible connection between the wearer’s movement and the passage of time.
Sculpted Stainless Steel Case
A circular bezel sits above brushed case surfaces, framed by polished edges that catch the light. Tapered lugs give the silhouette a defined shape, while the crown and two flanking pushers add a distinctly technical profile.
Bold perimeter markings complete the composition, giving MARKAB the visual character of a measuring instrument.
Integrated Bracelet
The bracelet continues the contours of the case, creating a unified silhouette from bezel to clasp. Broad brushed links are punctuated by polished centre elements, carrying the contrast of the case through the bracelet.
Seen as a whole, the design feels cohesive and deliberate. Each transition contributes to Aquamaster’s distinctive character, giving the watch a strong visual identity from every angle.
Three-Register Dial
A sunray finish sends light across the dial, revealing subtle changes in tone as the wrist moves. Raised hour markers frame three recessed sub-dials displaying the day, date, and 24-hour indication.
Contrasting rings separate each display from the surrounding surface, bringing depth and definition to a balanced, purposeful layout.
Automatic Movement
The natural movement of the wrist winds the mainspring, storing energy to power MARKAB’s automatic movement. A coordinated system of gears and springs drives the hands and calendar displays, translating mechanical motion into the rhythm of the day.
It is a tangible connection between the wearer’s movement and the passage of time.
Sculpted Stainless Steel Case
A circular bezel sits above brushed case surfaces, framed by polished edges that catch the light. Tapered lugs give the silhouette a defined shape, while the crown and two flanking pushers add a distinctly technical profile.
Bold perimeter markings complete the composition, giving MARKAB the visual character of a measuring instrument.
Integrated Bracelet
The bracelet continues the contours of the case, creating a unified silhouette from bezel to clasp. Broad brushed links are punctuated by polished centre elements, carrying the contrast of the case through the bracelet.
Seen as a whole, the design feels cohesive and deliberate. Each transition contributes to Aquamaster’s distinctive character, giving the watch a strong visual identity from every angle.
Three-Register Dial
A sunray finish sends light across the dial, revealing subtle changes in tone as the wrist moves. Raised hour markers frame three recessed sub-dials displaying the day, date, and 24-hour indication.
Contrasting rings separate each display from the surrounding surface, bringing depth and definition to a balanced, purposeful layout.
Automatic Movement
The natural movement of the wrist winds the mainspring, storing energy to power MARKAB’s automatic movement. A coordinated system of gears and springs drives the hands and calendar displays, translating mechanical motion into the rhythm of the day.
It is a tangible connection between the wearer’s movement and the passage of time.
Sculpted Stainless Steel Case
A circular bezel sits above brushed case surfaces, framed by polished edges that catch the light. Tapered lugs give the silhouette a defined shape, while the crown and two flanking pushers add a distinctly technical profile.
Bold perimeter markings complete the composition, giving MARKAB the visual character of a measuring instrument.
Integrated Bracelet
The bracelet continues the contours of the case, creating a unified silhouette from bezel to clasp. Broad brushed links are punctuated by polished centre elements, carrying the contrast of the case through the bracelet.
Seen as a whole, the design feels cohesive and deliberate. Each transition contributes to Aquamaster’s distinctive character, giving the watch a strong visual identity from every angle.
Ultra Luminous
The hands and indices are coated with Grade A luminous material, ensuring optimal legibility even in total darkness.
FAQ
Orders and Payments
1. What payment methods do you accept?
We offer a variety of secure and convenient instant or installment payment options for our global customers, including:
Credit cards and debit cards(VISA, Mastercard, Discover, etc.), PayPal, Shop Pay, Apple Pay, Google Pay, Amazon Pay, and more. We also support paying for virtual currencies via USDC. (All transactions are protected by encryption technology to safeguard your payment information, ensuring a worry-free experience.)
2. How do I check my order status?
You can view the detailed status of all orders (e.g., Order Processing, Shipped, Completed) by logging into your BTOMIC account and navigating to the “Order History” section under the “My Account” page.
3. Can I modify or cancel my order?
Once an order is submitted, the system will immediately begin processing it.
If you need to modify or cancel your order, please contact our customer service team immediately (via email: service@btomic.com/Tel: +1 (347) 459-1491), Service hours: Mon-Fri, 8AM-5PM PST.
We will do our best to assist you. However, please note that if the order has already entered the packing or shipping stage, we will be unable to intercept it.
Shipping and Delivery
1. What shipping methods do you offer, and what are the shipping costs?
We provide free shipping service for all orders, which has standard logistics timeliness. If you require a specific delivery service provider or delivery time, please contact our customer service team to confirm costs and other details.
2. How long will it take for my order to arrive?
Order processing typically takes 1-2 business days. Delivery time depends on your shipping address:
Standard Shipping: 3-12 business days.
(Note: Delays may occur during holidays or promotional periods.)
3. How can I track my package?
After your order ships, you will receive an email containing a tracking number. You can access our logistics partner's website via the link in the email to track your package's status in real time.
Warranty and Repair
1. What does the warranty policy specifically cover?
BTOMIC guarantee covers all manufacturing defects which have occurred within 24 months for new purchases and 90 days for repairs.
Exclusions apply to damage caused by accidents, misuse, unauthorized modifications, or normal wear and tear (e.g., scratches on the case, depleted battery). For detailed terms, please refer to our warranty certificate.
See our full WRRANATY & REPAIR POLICY.
2. How do I request repairs?
To process a repair, please contact us via email at “Contact Us” or phone at +1 (347) 459-1491 (Mon-Fri, 8.00 a.m. to 5.00 p.m. PST) for complete instructions. You will have to enclose a detailed repair request, your contact information, a copy of the Order Confirmation as proof of purchase of the Product and the warranty.
3. Is there a charge for watch repairs?
During the warranty period, repairs for malfunctions caused by manufacturing defects are free of charge. However, if the watch malfunctions due to accidental damage or beyond the warranty period, we will charge fees based on the repair items. Specific costs will be confirmed with you prior to any repairs.
Returns, Exchanges, and Refunds
1. How to make a return?
If you need to make your return, please contact us via email at “Contact Us” or phone at +1 (347) 459-1491 (Mon-Fri, 8.00 a.m. to 5.00 p.m. PST)
Please provide your proof of purchase along with product details. Our customer service team will arrange an appropriate solution for you.
See our full RETURNS & EXCHANGES POLICY.
2. I received a damaged item.
We sincerely apologize for this situation. Please contact us via email at “Contact Us” or phone at +1 (347) 459-1491 (Mon-Fri, 8.00 a.m. to 5.00 p.m. PST) within 48 hours of receiving your order, providing your order number and photos/videos of the defective item. Upon verification, we will arrange a free replacement or refund for you and cover the associated shipping costs.
See our full Terms of Sales.
3. How long does it take to process a refund?
Once we receive the returned item and confirm it meets the return criteria, we will process your refund within 5-7 business days. The refund will be issued back to your original payment account, and the time it takes to appear in your account depends on your issuing bank or payment platform.
See our full Terms of Sales.
