Seiko Seiko 5 Sports SRPJ81 Automatic Watch


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A Tantalizing Timepiece with a Heart of Steel: Calibre 4R36, Lumibrite Markers, and a 100-meter Water Resistance for the Discerning Adventurer.

About The Product

An Ode to the Classics: The Seiko SRPJ81 Field Watch

Timeless Design Meets Modern Innovation

Seiko has long been synonymous with craftsmanship, elegance, and precision. The Seiko SRPJ81 is no exception. A testament to the art of watchmaking, this modern reinterpretation of the classic field watch exudes a refined sophistication that defies the fickleness of fashion trends. While its 36.4mm case size offers the perfect harmony of presence and subtlety, its stainless steel construction ensures durability for the dapper adventurer.

The Heart of the SRPJ81: Calibre 4R36

At the epicenter of the SRPJ81’s functionality is the Calibre 4R36 movement, an automatic marvel that underpins its reliability and accuracy. Renowned for its 41-hour power reserve, this movement affords the wearer the luxury of setting aside their timepiece without the hassle of constant readjustments. The hacking seconds hand function ensures precision time-setting, aligning with Seiko’s commitment to deliver excellence in every aspect.

A Dial that Beguiles

The Seiko SRPJ81 features a bewitching black dial that captivates the senses. Its bold yet minimalist design captures the essence of field watch practicality while retaining a sophisticated flair. The crisp white hour markers and hands, coated with Lumibrite for exceptional low-light legibility, are a lesson in functional elegance. The day-date window at 3 o’clock offers an additional layer of convenience for the wearer with an insatiable appetite for information.

Unwavering Resilience

With a 100-meter water resistance, the Seiko SRPJ81 is a steadfast companion in the face of life’s unforeseen circumstances. Whether embarking on a sailing voyage or simply caught in a sudden downpour, this timepiece remains undeterred by the elements. The scratch-resistant Hardlex crystal offers peace of mind, ensuring the watch retains its pristine appearance, even when put to the test by the hands of time.

Embrace the Nickname: “”The Black Knight””

Endearingly referred to as “”The Black Knight,”” the Seiko SRPJ81 has garnered a following amongst watch enthusiasts who appreciate its dark, yet distinguished character. A fitting moniker for a timepiece that seamlessly blends a refined aesthetic with a rugged demeanor, “”The Black Knight”” is a title that embodies the essence of this remarkable watch.

Time to Make Your Move

Why merely admire the Seiko SRPJ81 from afar when you can experience its alluring charm firsthand? This field watch is a fusion of heritage and innovation, a testament to Seiko’s unyielding pursuit of perfection. With the heart of an adventurer and the elegance of a modern classic, the SRPJ81 is your invitation to embark on a journey where timekeeping becomes a pleasure rather than a chore. Discover the SRPJ81 and indulge in the luxury of exceptional timekeeping.


  • UPC: 029665218537
  • case color: Black
  • case material: Stainless Steel
  • case shape: Round
  • color: Black
  • gender: Unisex
  • movement: Analog
  • case size (width): 36.4mm
  • strap material: Stainless Steel
  • strap color: Silver
  • water resistance: 100m / 10atm (bar)

The Brand

Seiko, one of Japan’s most innovative and fully integrated watchmakers, boasts a heritage that goes back over 140 years. It is known for creating many watchmaking milestones: the world’s first quartz watch, Japan’s first dive watch, and also Japan’s first chronograph timepiece. Today, Seiko watches have long been the gold standard for watchmaking precision, excellent craftsmanship, and perfect durability. Its line-up includes the Seiko 5, Credor, Prospex, Presage, Velatura, and the Grand Seiko series.


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