

























Seiko
Seiko Prospex GMT Divers Automatic Marine Green Dial Silver Steel Strap Watch For Men - SPB381J1
DESCRIPTION
The Seiko Prospex GMT Divers Automatic Marine Green Dial Silver Steel Strap Watch for Men (SPB381J1) combines professional-grade diving capability with refined aesthetics. Featuring a striking marine green dial that captures the essence of underwater exploration, this timepiece delivers reliable automatic movement and dual time zone functionality ideal for travelers and diving enthusiasts. The robust stainless steel construction and secure steel bracelet ensure durability in demanding conditions, while the precision engineering reflects Seiko's legendary commitment to quality. Whether you're timing your next dive or navigating multiple time zones, this sophisticated diver's watch offers the performance and style that discerning watch collectors demand.
This modern re-interpretation of the 1968 Diver’s watch is inspired by Japan’s first hi-beat one-piece Diver’s watch created by Seiko.
The success of the 1968 model laid the foundation for Seiko Diver’s watch development which for sixty years has innovated in wearable, precise watches for professional and recreational divers.
This modern watch is powered by the new in-house Calibre 6R54 and is the first of Seiko’s diving watches with mechanical GMT functionality. Built for wearability: the bracelet fits comfortably due to its low centre of gravity and short-pitch – and durability: with a three-day power reserve and high-quality scratch resistant Japanese ceramic Diving scale, its water resistance is up to 200m.
Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.
Movement
- Caliber Number: 6R54
- Movement Type: Automatic with manual winding
- Precision: +25 to -15 seconds per day
- Power reserve: Approx. 72 hours(3 days)
- Jewels: 24
Functions
- 24-hour hand
- Stop second hand function
Case Size
Thickness: 12.9mm
Diameter: 42.0mm
Lug-to-lug: 48.6mm
Distance between lugs: 20mm
- Case Material: Stainless steel (super hard coating)
- Crystal: Sapphire crystal
- Crystal Coating: Anti-reflective coating on inner surface
- LumiBrite: LumiBrite on hands, index(es) and bezel
- Clasp: Three-fold clasp with secure lock , push button release with extender
Other Details
- Water Resistance: 200m / 660ft diver's
- Magnetic Resistance: 4,800 A/m
Features
- Unidirectional rotating bezel
- Screw-down crown
- Three-fold clasp with secure lock
- Screw case back
SHIPPING & DELVIERY
TomLouis Watches Shipping Policy
At TomLouis Watches, we strive to provide a seamless and convenient shopping experience. Our shipping policy is designed to provide clarity and transparency regarding delivery, customs, and order processing.
Free Worldwide Shipping
We offer free worldwide shipping on all orders, regardless of your location.
- Standard delivery typically takes 10–20 working days.
- For certain countries, delivery may take up to 30 working days.
- Delivery times may vary depending on the destination, customs procedures, and unforeseen circumstances.
Customs Clearance
For most international shipments, TomLouis Watches handles the customs clearance process. Where applicable, the price displayed on our website includes applicable taxes, duties, and fees, allowing for a smooth delivery experience.
Important: For certain countries, including Brazil, Sri Lanka, Pakistan, and India, local customs authorities may impose import duties, taxes, or other charges at their discretion. These charges can vary according to local regulations and are the responsibility of the customer.
Order Cancellation and Restocking
Once an order has been processed by our warehouse, cancellations are not permitted.
We cannot accommodate cancellation or refund requests after an order has been processed for shipment.
Delivery Timeframes and Delays
We aim to process and ship orders promptly after payment is received. However, we cannot guarantee an exact delivery date.
Delivery may be delayed due to:
- Customs clearance
- Carrier delays
- Weather or other transportation disruptions
- Incorrect or incomplete delivery information
- Other circumstances beyond our control
TomLouis Watches is not responsible for losses or damages resulting from delays caused by shipping carriers, customs authorities, or other circumstances beyond our control.
Tracking Your Order
Once your order has been shipped, you will receive a tracking number via email, typically within 5–8 working days after placing your order.
We work with established international shipping carriers, including DHL, FedEx, USPS, UPS, Canada Post, and other trusted courier services, depending on the destination.
If you have questions regarding your shipment, please contact our customer support team at Support@tomlouiswatches.com.
Thank you for choosing TomLouis Watches.
2-YEAR WARRANTY
All Watches are covered by a 2-year warranty from the date of shipment.
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DESCRIPTION
The Seiko Prospex GMT Divers Automatic Marine Green Dial Silver Steel Strap Watch for Men (SPB381J1) combines professional-grade diving capability with refined aesthetics. Featuring a striking marine green dial that captures the essence of underwater exploration, this timepiece delivers reliable automatic movement and dual time zone functionality ideal for travelers and diving enthusiasts. The robust stainless steel construction and secure steel bracelet ensure durability in demanding conditions, while the precision engineering reflects Seiko's legendary commitment to quality. Whether you're timing your next dive or navigating multiple time zones, this sophisticated diver's watch offers the performance and style that discerning watch collectors demand.
This modern re-interpretation of the 1968 Diver’s watch is inspired by Japan’s first hi-beat one-piece Diver’s watch created by Seiko.
The success of the 1968 model laid the foundation for Seiko Diver’s watch development which for sixty years has innovated in wearable, precise watches for professional and recreational divers.
This modern watch is powered by the new in-house Calibre 6R54 and is the first of Seiko’s diving watches with mechanical GMT functionality. Built for wearability: the bracelet fits comfortably due to its low centre of gravity and short-pitch – and durability: with a three-day power reserve and high-quality scratch resistant Japanese ceramic Diving scale, its water resistance is up to 200m.
Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.
Movement
- Caliber Number: 6R54
- Movement Type: Automatic with manual winding
- Precision: +25 to -15 seconds per day
- Power reserve: Approx. 72 hours(3 days)
- Jewels: 24
Functions
- 24-hour hand
- Stop second hand function
Case Size
Thickness: 12.9mm
Diameter: 42.0mm
Lug-to-lug: 48.6mm
Distance between lugs: 20mm
- Case Material: Stainless steel (super hard coating)
- Crystal: Sapphire crystal
- Crystal Coating: Anti-reflective coating on inner surface
- LumiBrite: LumiBrite on hands, index(es) and bezel
- Clasp: Three-fold clasp with secure lock , push button release with extender
Other Details
- Water Resistance: 200m / 660ft diver's
- Magnetic Resistance: 4,800 A/m
Features
- Unidirectional rotating bezel
- Screw-down crown
- Three-fold clasp with secure lock
- Screw case back
SHIPPING & DELVIERY
TomLouis Watches Shipping Policy
At TomLouis Watches, we strive to provide a seamless and convenient shopping experience. Our shipping policy is designed to provide clarity and transparency regarding delivery, customs, and order processing.
Free Worldwide Shipping
We offer free worldwide shipping on all orders, regardless of your location.
- Standard delivery typically takes 10–20 working days.
- For certain countries, delivery may take up to 30 working days.
- Delivery times may vary depending on the destination, customs procedures, and unforeseen circumstances.
Customs Clearance
For most international shipments, TomLouis Watches handles the customs clearance process. Where applicable, the price displayed on our website includes applicable taxes, duties, and fees, allowing for a smooth delivery experience.
Important: For certain countries, including Brazil, Sri Lanka, Pakistan, and India, local customs authorities may impose import duties, taxes, or other charges at their discretion. These charges can vary according to local regulations and are the responsibility of the customer.
Order Cancellation and Restocking
Once an order has been processed by our warehouse, cancellations are not permitted.
We cannot accommodate cancellation or refund requests after an order has been processed for shipment.
Delivery Timeframes and Delays
We aim to process and ship orders promptly after payment is received. However, we cannot guarantee an exact delivery date.
Delivery may be delayed due to:
- Customs clearance
- Carrier delays
- Weather or other transportation disruptions
- Incorrect or incomplete delivery information
- Other circumstances beyond our control
TomLouis Watches is not responsible for losses or damages resulting from delays caused by shipping carriers, customs authorities, or other circumstances beyond our control.
Tracking Your Order
Once your order has been shipped, you will receive a tracking number via email, typically within 5–8 working days after placing your order.
We work with established international shipping carriers, including DHL, FedEx, USPS, UPS, Canada Post, and other trusted courier services, depending on the destination.
If you have questions regarding your shipment, please contact our customer support team at Support@tomlouiswatches.com.
Thank you for choosing TomLouis Watches.
2-YEAR WARRANTY
All Watches are covered by a 2-year warranty from the date of shipment.
DESCRIPTION
The Seiko Prospex GMT Divers Automatic Marine Green Dial Silver Steel Strap Watch for Men (SPB381J1) combines professional-grade diving capability with refined aesthetics. Featuring a striking marine green dial that captures the essence of underwater exploration, this timepiece delivers reliable automatic movement and dual time zone functionality ideal for travelers and diving enthusiasts. The robust stainless steel construction and secure steel bracelet ensure durability in demanding conditions, while the precision engineering reflects Seiko's legendary commitment to quality. Whether you're timing your next dive or navigating multiple time zones, this sophisticated diver's watch offers the performance and style that discerning watch collectors demand.
This modern re-interpretation of the 1968 Diver’s watch is inspired by Japan’s first hi-beat one-piece Diver’s watch created by Seiko.
The success of the 1968 model laid the foundation for Seiko Diver’s watch development which for sixty years has innovated in wearable, precise watches for professional and recreational divers.
This modern watch is powered by the new in-house Calibre 6R54 and is the first of Seiko’s diving watches with mechanical GMT functionality. Built for wearability: the bracelet fits comfortably due to its low centre of gravity and short-pitch – and durability: with a three-day power reserve and high-quality scratch resistant Japanese ceramic Diving scale, its water resistance is up to 200m.
Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.
Movement
- Caliber Number: 6R54
- Movement Type: Automatic with manual winding
- Precision: +25 to -15 seconds per day
- Power reserve: Approx. 72 hours(3 days)
- Jewels: 24
Functions
- 24-hour hand
- Stop second hand function
Case Size
Thickness: 12.9mm
Diameter: 42.0mm
Lug-to-lug: 48.6mm
Distance between lugs: 20mm
- Case Material: Stainless steel (super hard coating)
- Crystal: Sapphire crystal
- Crystal Coating: Anti-reflective coating on inner surface
- LumiBrite: LumiBrite on hands, index(es) and bezel
- Clasp: Three-fold clasp with secure lock , push button release with extender
Other Details
- Water Resistance: 200m / 660ft diver's
- Magnetic Resistance: 4,800 A/m
Features
- Unidirectional rotating bezel
- Screw-down crown
- Three-fold clasp with secure lock
- Screw case back
SHIPPING & DELVIERY
TomLouis Watches Shipping Policy
At TomLouis Watches, we strive to provide a seamless and convenient shopping experience. Our shipping policy is designed to provide clarity and transparency regarding delivery, customs, and order processing.
Free Worldwide Shipping
We offer free worldwide shipping on all orders, regardless of your location.
- Standard delivery typically takes 10–20 working days.
- For certain countries, delivery may take up to 30 working days.
- Delivery times may vary depending on the destination, customs procedures, and unforeseen circumstances.
Customs Clearance
For most international shipments, TomLouis Watches handles the customs clearance process. Where applicable, the price displayed on our website includes applicable taxes, duties, and fees, allowing for a smooth delivery experience.
Important: For certain countries, including Brazil, Sri Lanka, Pakistan, and India, local customs authorities may impose import duties, taxes, or other charges at their discretion. These charges can vary according to local regulations and are the responsibility of the customer.
Order Cancellation and Restocking
Once an order has been processed by our warehouse, cancellations are not permitted.
We cannot accommodate cancellation or refund requests after an order has been processed for shipment.
Delivery Timeframes and Delays
We aim to process and ship orders promptly after payment is received. However, we cannot guarantee an exact delivery date.
Delivery may be delayed due to:
- Customs clearance
- Carrier delays
- Weather or other transportation disruptions
- Incorrect or incomplete delivery information
- Other circumstances beyond our control
TomLouis Watches is not responsible for losses or damages resulting from delays caused by shipping carriers, customs authorities, or other circumstances beyond our control.
Tracking Your Order
Once your order has been shipped, you will receive a tracking number via email, typically within 5–8 working days after placing your order.
We work with established international shipping carriers, including DHL, FedEx, USPS, UPS, Canada Post, and other trusted courier services, depending on the destination.
If you have questions regarding your shipment, please contact our customer support team at Support@tomlouiswatches.com.
Thank you for choosing TomLouis Watches.
2-YEAR WARRANTY
All Watches are covered by a 2-year warranty from the date of shipment.
