[Status]
There is some slight staining on the inside of the belt.
[Accessories]
Everything is shown in the photos.
[Product Information]
• Model: SEIKO TiCTAC SZSB006 (Cal. 4R35-02R0).
• Series: TiCTAC × Seiko Collaboration Series.
• Nickname: “TiCTAC Military Blue”.
• Type: Automatic Mechanical Sports Watch.
• Release era: 2019.
• Market: Japanese Domestic Market (JDM) exclusive.
• Design inspiration: Modern reinterpretation of classic Seiko field and military watches, created exclusively for Japanese retailer TiCTAC.
Case & build
• Case size: 40.0 mm diameter.
• Thickness: 11.0 mm.
• Lug-to-lug: approx. 46.0 mm.
• Lug width: 20 mm.
• Weight: approx. 135 g.
• Case material: Stainless steel.
• Band: Stainless steel bracelet.
• Glass: Box-shaped Hardlex crystal.
• Water resistance: 100 m / 10 bar.
• Exhibition screw-down case back.
• Brushed and polished finishing throughout the case and bracelet.
Design concept
• Developed as an exclusive collaboration between Seiko and Japanese watch retailer TiCTAC.
• Inspired by vintage military and field watches from Seiko's archives.
• Features a distinctive deep navy-blue sunburst dial that changes appearance depending on lighting conditions.
• Large Arabic numerals and highly legible handset emphasize practicality and everyday usability.
• Red seconds-hand tip adds a subtle sports-watch accent.
• The box-shaped Hardlex crystal gives the watch a slightly vintage appearance while maintaining durability.
• Designed to offer strong value by combining classic Seiko styling with modern mechanical specifications.
• Frequently compared to discontinued SARB-series models because of its balanced proportions and attractive finishing.
Functions
• Automatic winding.
• Manual winding capability.
• Hacking seconds (stop-seconds function).
• Central hours, minutes, and seconds.
• Date display at 3 o'clock.
• Quick-set date.
• Lumibrite hands and markers.
• Mechanical self-winding movement with hand-winding support.
Power
• Caliber: 4R35.
• Automatic mechanical movement.
• 23 jewels.
• Frequency: 21,600 vibrations per hour (3 Hz).
• Power reserve: approximately 41 hours.
• Accuracy: +45 / -35 seconds per day (factory specification).
• Seiko Magic Lever winding system.
Key highlights
• One of the most sought-after modern TiCTAC-exclusive Seiko releases.
• Features an attractive navy-blue sunburst dial rarely seen on affordable Seiko mechanical watches.
• Equipped with the reliable and easily serviceable 4R35 automatic movement.
• 100 m water resistance makes it more versatile than many dress-oriented Seiko mechanical watches.
• Frequently described by enthusiasts as a spiritual successor to popular SARB models due to its design, proportions, and value.
• Box-shaped crystal and vintage-inspired dial layout give the watch strong retro appeal.
• JDM exclusivity and limited retail availability have made it increasingly collectible outside Japan.
• Widely regarded as one of the best-value Seiko collaboration watches of the modern era.
Many collectors consider the SZSB006 one of the hidden gems of Seiko's modern lineup because it combines the reliability of the 4R35 movement, attractive vintage-inspired styling, strong everyday practicality, and JDM exclusivity at a price point far below most comparable enthusiast-favorite Seiko models.