A distinctive Seiko 5 Sports automatic featuring a bold black dial, luminous baton-style markers, red seconds hand, integrated stainless steel bracelet and the characteristic angular/scalloped case design of the Seiko 5 Sports collection. Made in Japan and powered by the robust Seiko Caliber 7S36 automatic movement, this example combines everyday practicality with the mechanical character that makes vintage and discontinued Seiko 5 Sports models popular among collectors.
The watch is identified by the case/movement reference 7S36-00M0 and corresponds to the Seiko 5 Sports SNZ449 family, with the Japanese-market SNZ449J1 being the closest documented model designation for the black-dial Made-in-Japan configuration. (WatchSleuth)
Collector’s Note
The 7S36-00M0 is an especially distinctive Seiko 5 Sports configuration, combining a sporty integrated-bracelet case with a highly legible black dial and a transparent exhibition caseback.
Unlike the standard 21-jewel 7S26, the Caliber 7S36 uses 23 jewels. Seiko’s own technical documentation identifies the 7S36 as a 23-jewel automatic caliber operating at 21,600 vibrations per hour. (Seiko Watches)
The watch also carries the desirable Made in Japan marking on the dial and caseback. The original-style exhibition caseback allows the automatic movement and rotor to be viewed directly.
Specifications
* Brand: Seiko
* Collection: Seiko 5 Sports
* Model Family: SNZ449
* Reference / Case-Movement Code: 7S36-00M0
* Movement: Seiko Caliber 7S36
* Movement Type: Automatic / Self-Winding Mechanical
* Jewels: 23 Jewels
* Beat Rate: 21,600 BPH / 6 beats per second
* Power Reserve: Approximately 41–43 Hours
* Hand Winding: No
* Hacking Seconds: No
* Winding System: Automatic self-winding
* Functions: Hours, Minutes, Central Seconds, Day & Date
* Day Display: Bilingual day indication
* Dial Colour: Black
* Dial Type: Analog
* Dial Details: Luminous applied-style hour markers with inner numbered minute/second track
* Seconds Hand: Red
* Luminous Material: LumiBrite-style luminous hands and markers
* Crystal: Hardlex Mineral Crystal
* Case Material: Stainless Steel
* Case Finish: Brushed and polished stainless steel
* Case Shape: Round with distinctive angular/scalloped bezel design
* Case Diameter: Approximately 39 mm excluding crown
* Case Thickness: Approximately 12 mm
* Lug / Bracelet Width: Approximately 19–20 mm depending on measurement reference
* Bracelet: Integrated stainless steel bracelet
* Clasp: Folding clasp with safety locking mechanism
* Case Back: Transparent / Exhibition Screw-Down Caseback
* Water Resistance Marking: 100M / 10 BAR
* Country of Manufacture: Japan
* Dial Marking: MADE IN JAPAN
* Caseback Marking: MADE IN JAPAN
* Condition: Vintage Pre-Owned
Published specifications for the SNZ449J1 family list a stainless-steel case, Hardlex crystal, 100 m water resistance, transparent caseback, day-date display and 23-jewel 7S36 automatic movement. Case measurements are generally reported around 39 mm diameter and 12 mm thickness. (Timepiece)
Serial Number
The individual serial number is not clearly legible in the supplied photographs and therefore has not been stated.
The visible case/movement reference is:
7S36-00M0
The caseback additionally carries the Made in Japan marking and the Seiko identification engravings.
Movement Highlights
* Genuine Seiko Caliber 7S36 automatic movement
* 23-jewel mechanical movement
* 21,600 BPH operating frequency
* Approximately 41–43-hour power reserve
* Reliable automatic self-winding architecture
* No manual-winding function
* No hacking/stop-seconds function
* Visible automatic rotor through the exhibition caseback
* Movement reference corresponds directly with the 7S36-00M0 case marking
Seiko’s official documentation specifies the 7S36 at 21,600 vibrations per hour and 23 jewels, with more than approximately 41 hours of continuous operating time. (Seiko Watches)
Why You’ll Love It
* Rare and distinctive Seiko 5 Sports design
* Correct 7S36-00M0 reference visible on the caseback
* 23-jewel automatic movement
* Bold black sports dial
* Red central seconds hand
* Highly legible luminous markers
* Day-date complication
* Integrated stainless steel bracelet
* Exhibition caseback
* Made in Japan marking on dial and caseback
* 100M water-resistance specification
* Excellent choice for collectors of discontinued Seiko 5 Sports models
Important Note
This is a vintage pre-owned timepiece. All specifications, including power reserve, water resistance, accuracy, jewel count, movement features, and other manufacturer details, are based on the watch’s original factory specifications and are provided for reference only. Due to age, previous use, and service history, actual performance may vary.
Although the dial is marked 100M WATER RESIST, water resistance is not guaranteed on a vintage watch unless it has been professionally pressure-tested recently. We do not recommend exposing the watch to water unless its current water resistance has been verified.
Minor signs of age and wear may be present on the case, crystal, bracelet and clasp and are part of the watch’s authentic vintage character. Please review all photographs carefully before purchasing.
