Octant
BA-383
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/Fluorine Rubber
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.
Distant Voyager
At sea, the horizon provided a reference. The octant allowed navigators to measure the altitude of the Sun and stars above it, turning careful observation into knowledge of their position.
OCTANT takes its name from this tradition of measurement and discovery. Its eight-sided bezel offers a contemporary geometric echo of the name, while the ordered dial and clearly defined markers place clarity at the centre of the design.
A tribute to the instruments that helped people navigate—and to the considered judgement behind every journey.
Grid-Textured Dial
A repeating pattern of small squares gives the dial depth and a precise visual rhythm. Light catches the raised surfaces and settles into the spaces between them, revealing the texture as the viewing angle changes.
Elongated hour markers stand above this ordered background, their smooth outlines creating a clear contrast with the fine geometry beneath.
Time & Date
Three central hands keep the display focused, supported by distinct hour markers and a finely divided minute track. A contrasting date window at 3 o’clock adds an everyday reference within the textured dial.
Each element has a clear role, bringing practical information into a composition that feels open, balanced, and easy to read.
Sculpted Stainless Steel Case
A broad, rounded bezel frames the dial within a sharply defined case. Brushed surfaces meet polished edges, creating a contrast that becomes more pronounced as the wrist moves through the light. The interplay of curved and angular forms gives Aquamaster its distinctive profile—a confident silhouette with carefully considered detail.
Integrated Bracelet
The bracelet carries the broad lines of the case around the wrist, creating a continuous silhouette. Brushed links are accented by polished centre elements, extending the contrast of the bezel through the length of the bracelet.
Its tapering proportions bring a sense of progression to the design, connecting each articulated link to OCTANT’s distinctive geometric character.
Grid-Textured Dial
A repeating pattern of small squares gives the dial depth and a precise visual rhythm. Light catches the raised surfaces and settles into the spaces between them, revealing the texture as the viewing angle changes.
Elongated hour markers stand above this ordered background, their smooth outlines creating a clear contrast with the fine geometry beneath.
Time & Date
Three central hands keep the display focused, supported by distinct hour markers and a finely divided minute track. A contrasting date window at 3 o’clock adds an everyday reference within the textured dial.
Each element has a clear role, bringing practical information into a composition that feels open, balanced, and easy to read.
Sculpted Stainless Steel Case
A broad, rounded bezel frames the dial within a sharply defined case. Brushed surfaces meet polished edges, creating a contrast that becomes more pronounced as the wrist moves through the light. The interplay of curved and angular forms gives Aquamaster its distinctive profile—a confident silhouette with carefully considered detail.
Integrated Bracelet
The bracelet carries the broad lines of the case around the wrist, creating a continuous silhouette. Brushed links are accented by polished centre elements, extending the contrast of the bezel through the length of the bracelet.
Its tapering proportions bring a sense of progression to the design, connecting each articulated link to OCTANT’s distinctive geometric character.
Grid-Textured Dial
A repeating pattern of small squares gives the dial depth and a precise visual rhythm. Light catches the raised surfaces and settles into the spaces between them, revealing the texture as the viewing angle changes.
Elongated hour markers stand above this ordered background, their smooth outlines creating a clear contrast with the fine geometry beneath.
Time & Date
Three central hands keep the display focused, supported by distinct hour markers and a finely divided minute track. A contrasting date window at 3 o’clock adds an everyday reference within the textured dial.
Each element has a clear role, bringing practical information into a composition that feels open, balanced, and easy to read.
Sculpted Stainless Steel Case
A broad, rounded bezel frames the dial within a sharply defined case. Brushed surfaces meet polished edges, creating a contrast that becomes more pronounced as the wrist moves through the light. The interplay of curved and angular forms gives Aquamaster its distinctive profile—a confident silhouette with carefully considered detail.
Integrated Bracelet
The bracelet carries the broad lines of the case around the wrist, creating a continuous silhouette. Brushed links are accented by polished centre elements, extending the contrast of the bezel through the length of the bracelet.
Its tapering proportions bring a sense of progression to the design, connecting each articulated link to OCTANT’s distinctive geometric character.
Grid-Textured Dial
A repeating pattern of small squares gives the dial depth and a precise visual rhythm. Light catches the raised surfaces and settles into the spaces between them, revealing the texture as the viewing angle changes.
Elongated hour markers stand above this ordered background, their smooth outlines creating a clear contrast with the fine geometry beneath.
Time & Date
Three central hands keep the display focused, supported by distinct hour markers and a finely divided minute track. A contrasting date window at 3 o’clock adds an everyday reference within the textured dial.
Each element has a clear role, bringing practical information into a composition that feels open, balanced, and easy to read.
Sculpted Stainless Steel Case
A broad, rounded bezel frames the dial within a sharply defined case. Brushed surfaces meet polished edges, creating a contrast that becomes more pronounced as the wrist moves through the light. The interplay of curved and angular forms gives Aquamaster its distinctive profile—a confident silhouette with carefully considered detail.
Integrated Bracelet
The bracelet carries the broad lines of the case around the wrist, creating a continuous silhouette. Brushed links are accented by polished centre elements, extending the contrast of the bezel through the length of the bracelet.
Its tapering proportions bring a sense of progression to the design, connecting each articulated link to OCTANT’s distinctive geometric character.
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.
