Since its founding in 1881, Seiko has approached watchmaking as our way to meet society’s evolving needs. Inspired by the vision of our founder, Kintaro Hattori, to be “Always one step ahead of the rest,” Seiko has driven innovation and progress for the past 145 years.

Looking forward, we promise that, as a company trusted by society, we will constantly pursue innovation, inspiring people everywhere, and creating a future full of smiles.

A new creation celebrates Seiko’s 145th anniversary in Edo purple, 
reflecting an evolving aesthetic shaped by Tokyo’s heritage

In the third series of commemorative limited-edition watches celebrating Seiko’s 145th anniversary, “Edo purple” serves as a central design element. This color reflects traditions passed on from ancient Edo to modern-day Tokyo and the spirit of creativity that has kept Japan’s largest city evolving into the present day.

This digital quartz creation harmoniously blends refinement with a bold presence on the wrist. The watch combines a black case and bracelet with a purple aluminum bezel, expressing a distinctive sense of understated elegance and strength synonymous with Edo, the ancient name of Tokyo. Gold-tone accents elevate the design through their subtle brilliance.

The watch is based on a classic 1982 digital watch design, the Rotocall, which featured a rotary switch that revolutionized how users changed modes with a simple turn of the bezel. This unique design, combined with its popularity among astronauts, contributed to the model’s strong international recognition.

Specifications

Movement

Caliber Number

A824

Movement Type

Quartz

Precision

±20 seconds per month

Battery life

Approx. 3 years

Functions

• Rotary switch
• Counter Function
• Chronograph up to 100 hours in 1/100 second increments
• Alarm function (single-time alarm)
• Timer function (up to 100 minutes in 1-minute increments)
• Full Auto Calendar Function (until December 31, 2074)
• Dual-time function
• Battery life warning function
• Internal Illumination (LED)

Case/Band

Case Material

Stainless steel (hard coating)

Case Size

Thickness:10.6mm
Diameter:37.0mm
Lug-to-lug:43.5mm

Crystal

Hardlex

Clasp

Three-fold clasp with push button release

Distance between lugs

20mm

Other Details

Water Resistance

10 bar

Weight

108.0g

Features

• LIMITED EDITION on the case back
• Rotating bezel
• Screw case back