| Brand | Seiko |
| Model / family | Seiko 5 |
| Recorded reference | 6309-7000 (caseback); 6309-872M (previously recorded dial code) |
| Movement | Mechanical (Automatic) |
| Jewels | 17 Jewels |
| Dial colour | Black |
| Case material | Stainless Steel |
| Bracelet / strap material | Stainless Steel |
| Clasp / closure | Fold-Over Push-Button Deployant |
| Functions | Day/Date |
| Recorded case size | 40 mm |
| Recorded case thickness | 10 mm |
| Recorded lug width | 18 mm |
| Recorded band width | 20 mm |
| Recorded wrist fit | 8.26 - 8.5 in |
| Recorded manufacture period | 1980-1989 |
| Recorded country of origin | Japan |
| Original box included | No |
| Papers included | No |
| Service records included | No |
The photographed caseback is marked 6309-7000 and serial 720631. The dial code is recorded separately from the case reference.
Seller-reported operation: The watch is working. Current timing accuracy and power reserve have not been independently verified.
Service / refurbishment history from the previous seller description:
Cosmetic condition: Pre-owned watch. Please inspect all photographs for the case, dial, crystal, bracelet and clasp condition. The seller previously recorded the watch as working. Previous condition notes: Pre-owned in excellent working condition. Professionally cleaned and serviced. Strictly adheres to a 'no-polish' philosophy, completely preserving the original factory case lines, sharp edge geometry, and authentic vintage character. All timekeeping and day/date functions operate perfectly. Ready to wear
Water resistance is untested and is not guaranteed. The watch should be kept away from water. Dimensions and dating are the previously recorded listing information unless supported by photographed measurements or markings. Originality of every component and earlier polishing history have not been independently established.
The listing is for the photographed watch and fitted bracelet or strap. Refer to the box and papers entries above for included original accessories. Combined shipping is available for multiple purchases.