A distinctive Seiko 5 Automatic featuring a rich midnight blue sunburst dial, applied silver-tone rectangular hour markers and a contrasting orange-red sweeping seconds hand. The unusual inner 13–24 railway/military-style time track gives this Seiko 5 its characteristic utilitarian identity while retaining a refined vintage appearance.
Powered by Seiko’s proven 7S26C automatic movement with 21 jewels, this example features a practical day-date display, recessed 4 o’clock crown and an exhibition case back. It is fitted with its original Seiko stainless-steel bracelet, marked 301G1-Z1.
The 7S26-02C0 case reference is used across a range of Seiko 5 models, including Railway Time variants.
Collector’s Note
The Seiko 5 Railway Time variants are particularly interesting within the Seiko 5 family for their distinctive 24-hour railway/military-style scale. Rather than a conventional dial layout, the inner track displays the additional 13–24 hour numerals, creating a highly legible and unusual aesthetic.
This example is especially attractive with its midnight blue sunburst dial, silver-tone applied markers, orange-red seconds hand and original Seiko bracelet. The Made in Japan dial marking and exhibition case back further add to its appeal for collectors of Japanese Seiko 5 watches.
Specifications
* Brand: Seiko
* Series: Seiko 5
* Variant: Railway / Military Time Dial
* Case Reference: 7S26-02C0
* Dial Code: 7S26-0610
* Dial Marking: MADE IN JAPAN 7S26-0610 R 2
* Movement: Automatic / Self-winding
* Caliber: Seiko 7S26C
* Jewels: 21 Jewels
* Frequency: 21,600 vibrations per hour
* Power Reserve: Approx. 41–43 hours
* Case Material: Stainless Steel
* Case Finish: Polished & Brushed
* Dial Color: Midnight Blue Sunburst
* Hour Markers: Applied silver-tone rectangular baton markers with luminous inserts
* Hands: Silver-tone luminous hour and minute hands
* Seconds Hand: Orange-red
* Crystal: Hardlex
* Water Resistance: 30 metres / 3 bar
* Crown Position: 4 o’clock
* Case Back: Open / Exhibition See-through
* Bracelet: Original Seiko Stainless-Steel Bracelet
* Bracelet Code: 301G1-Z1
Dial Details
The watch features a midnight blue sunburst dial whose colour shifts subtly with the angle of the light, producing a rich radial effect.
The hour markers are applied silver-tone rectangular batons with luminous inserts. The 12 o’clock marker is more prominent, while the remaining hour markers follow the elongated rectangular design.
Around the dial is the distinctive 13–24 railway/military-style hour scale, printed in white Arabic numerals, accompanied by a fine minute track.
The contrasting orange-red seconds hand provides a sharp accent against the midnight blue dial.
At 3 o’clock is the framed day-date display.
The dial is signed:
* SEIKO
* Seiko 5
* AUTOMATIC
* 21 JEWELS
* JAPAN
Dimensions
* Case Diameter: Approx. 37 mm excluding crown
* Case Thickness: Approx. 11 mm
* Lug-to-Lug: Approx. 42 mm
* Lug Width: 18 mm
* Crown Position: 4 o’clock
* Integrated Link Attachment: Approx. 10 mm centre-notch insertion
* Outer Flared Link Width: Approx. 20 mm
Case Back Details
The watch features an open exhibition / see-through case back, allowing the wearer to view the Seiko automatic movement through the rear of the watch.
The stainless-steel case combines polished and brushed surfaces, complementing the integrated bracelet design.
Bracelet Details
This example is fitted with its original Seiko stainless-steel bracelet.
* Bracelet Code: 301G1-Z1
* Material: Stainless Steel
* Finish: Brushed & polished
* Type: Integrated bracelet
The 301G1 family is documented among compatible metal-band specifications for the 7S26-02C0 case family.
Movement Highlights
The watch is powered by Seiko’s dependable Caliber 7S26C, a traditional automatic mechanical movement from the 7S26 family.
* Automatic / Self-winding
* 21 Jewels
* 21,600 bph
* Approx. 41–43-hour power reserve
* Rotor-powered automatic winding
* Non-hacking
* Non-hand-winding
The 7S26C is designed to wind through the movement of the rotor as the watch is worn. It does not support manual winding through the crown, and the seconds hand does not stop when the crown is pulled out for time setting.
Day-Date Operation
The crown provides the following adjustment functions:
* First position, clockwise: Quickset date
* First position, counter-clockwise: Quickset day
* Second position: Set time
Important: As with mechanical day-date movements, avoid using the quickset function during the watch’s automatic date-change period; set the time outside that range before adjusting the calendar.
Why You’ll Love It
* Distinctive Seiko 5 Railway Time design
* Rich midnight blue sunburst dial
* Applied silver-tone rectangular luminous hour markers
* Unique 13–24 railway/military time scale
* Contrasting orange-red seconds hand
* Reliable 7S26C 21-jewel automatic movement
* Made in Japan dial marking
* Original Seiko stainless-steel bracelet
* 301G1-Z1 bracelet specification
* Exhibition / see-through case back
* Practical day-date display
* Recessed 4 o’clock crown
* Compact approximately 37 mm case
* Excellent example for collectors of Japanese Seiko 5 watches
Important Note
This is a vintage/pre-owned mechanical watch. Due to the age and nature of vintage timepieces, minor signs of wear may be present. Mechanical watches can require periodic servicing, and timekeeping accuracy and power reserve may vary depending on the watch’s age, condition and previous service history.
The 7S26C movement does not feature manual hand-winding or hacking seconds, which is normal for this caliber.
The watch is sold in the condition shown in the photographs. Please review all images carefully for the exact cosmetic condition before purchase.
