You can purchase fat spring bars designed for these straps here and a spring bar tool here.

Upgrade your Seiko dive watch with our Seiko Flat Vent Rubber Watch Strap, available in 20mm and 22mm widths. Inspired by the iconic flat vent straps found on classic Seiko divers, this premium replacement strap combines vintage styling with modern materials, delivering exceptional comfort, flexibility, and durability for everyday wear and underwater adventures.

Manufactured from high-quality silicone rubber, this strap is soft against the skin, waterproof, and built to withstand the demands of an active lifestyle. Whether you're restoring a vintage Seiko or upgrading your daily wearer, this flat vent strap is the perfect choice.

Premium Silicone Rubber Construction

Made from premium-grade silicone rubber, this strap offers superior flexibility and comfort compared to traditional rubber straps.

The material is waterproof, sweat-resistant, UV-resistant, and designed to maintain its appearance even after prolonged exposure to the elements.

Its soft texture provides all-day comfort while remaining strong enough for diving, swimming, hiking, and everyday use.

Classic Seiko Flat Vent Design

The legendary flat vent design has been a favourite among Seiko enthusiasts for decades.

Originally developed for professional dive watches, the vented sections improve flexibility and allow the strap to expand and contract slightly with changing water pressure and temperature.

The result is a comfortable, functional strap with unmistakable vintage Seiko styling.

Why Choose Our Seiko Flat Vent Strap?

✔ Premium silicone rubber construction

✔ Available in 20mm and 22mm widths

✔ Classic Seiko-inspired flat vent design

✔ Soft, flexible and comfortable

✔ Waterproof and sweat-resistant

✔ Lightweight yet highly durable

✔ Stainless steel buckle

✔ Perfect for diving, swimming and everyday wear

Comfortable for Everyday Wear

Designed with comfort in mind, the flexible silicone rubber naturally conforms to your wrist for a secure fit without feeling stiff or restrictive.

The lightweight construction makes it ideal for extended wear, whether you're in the office, exploring outdoors, or spending time in the water.

Built for Adventure

From professional diving to weekend adventures, this strap is engineered to perform.

Its waterproof construction won't absorb moisture, while the durable silicone material resists cracking, fading, and deterioration caused by saltwater, chlorine, sunlight, and daily use.

Premium Stainless Steel Buckle

The strap is fitted with a high-quality stainless steel buckle that provides dependable security and excellent corrosion resistance.

Its robust construction complements the rugged nature of the strap while ensuring your watch remains securely fastened.

Compatible with Seiko Watches

Available in 20mm and 22mm lug widths, making it suitable for many Seiko models, including popular dive watches such as:

• Seiko SKX007
• Seiko SKX009
• Seiko Turtle
• Seiko Samurai
• Seiko Sumo
• Seiko Monster
• Seiko 5 Sports
• Seiko Prospex models

Also suitable for any watch with a 20mm or 22mm lug width.

Please measure your watch's lug width before ordering to ensure the correct fit.

Product Features

• Premium silicone rubber construction
• Classic Seiko flat vent design
• Available in 20mm and 22mm
• Waterproof and sweat-resistant
• Soft and flexible for all-day comfort
• UV-resistant material
• Durable stainless steel buckle
• Lightweight yet exceptionally strong
• Ideal for diving, swimming and sports
• Easy to install and remove
• Suitable for Seiko and other compatible watches
• In Stock for Fast UK Dispatch

Package Includes

• 1 × Seiko Flat Vent Rubber Watch Strap
• Stainless steel buckle
• Secure protective packaging

The Perfect Strap for Your Seiko

Whether you're restoring a vintage diver, upgrading your favourite Seiko, or simply looking for a comfortable, high-quality rubber strap, our Seiko Flat Vent Rubber Watch Strap is an excellent choice. Combining the iconic styling of the original flat vent design with modern silicone rubber construction, it offers outstanding durability, exceptional comfort, and dependable performance both in and out of the water.

Available in 20mm and 22mm, it's the perfect finishing touch for your Seiko dive watch or any compatible timepiece.

There is a huge amount of misunderstanding and misinformation on the web around these straps stating that they are one particular style with uniform quality. This is simply not true. They are made in different locations in different countries including, but not exclusively, Malaysia, Singapore, Japan and China. Each is slightly different in appearance and quality. Our straps are often removed from genuine Seiko watches which are modded (with a steel mesh strap).

You can purchase fat spring bars designed for these straps here and a spring bar tool here.

Not sure what size your watch is then look at our short video below.