---
title: "Seiko Bell-Matic Automatic Alarm 39mm Stainless Steel Navy Blue Dial 4006-6031 1973"
type: "product"
brand: "Seiko"
model: ""
reference: "4006-6031"
price: 495
currency: "GBP"
condition: "Pre-owned"
year: 1973
category: "Watches"
subcategory: "Seiko"
availability: "In Stock"
url: "https://jamesrossjewellers.co.uk/product/seiko-bell-matic-automatic-alarm-39mm-stainless-steel-navy-blue-dial-4006-6031-1973-jrw-215"
image: "https://jamesrossjewellers.co.uk/uploads/original_image/583fb1c3bbcc5a30d956ab58a5025ec3.jpeg"
updated: "2026-05-01"
---

# Seiko Bell-Matic Automatic Alarm 39mm Stainless Steel Navy Blue Dial 4006-6031 1973

## Price

**£495** (Finance available from £46.57/month)

## Description

This striking 1973 Seiko Bell-Matic automatic alarm watch, reference 4006-6031, features a bold 39mm stainless steel case paired with a navy blue dial, delivering a distinctive vintage aesthetic. The Bell-Matic is renowned for its innovative mechanical alarm complication, making it a favourite among collectors.
Fitted with its original Seiko stainless steel “coffin” bracelet, the watch is powered by the Calibre 4006 automatic alarm movement, which has been fully serviced and is supplied with a two-year guarantee. Presented in immaculate condition, this is a rare find in such outstanding condition, offering excellent value and collectability.
With decades of expertise and a trusted reputation, James Ross Jewellers proudly presents an exceptional collection of luxury and vintage watches.
This watch has been checked against technical records to guarantee authenticity and a clean history.

## Specifications

| Specification | Value |
|---------------|-------|
| Brand | Seiko |
| Reference Number | 4006-6031 |
| Year | 1973 |
| Condition | Pre-owned |
| Case Size | 39mm |
| Strap design | Stainless Steel |
| Papers | Certificate of Authenticity |
| Material | Stainless Steel |
| Bezel material | Stainless Steel |
| Dial Colour | Navy Blue |
| Gender | Gents |
| Serial | 311264 |
| Movement | Automatic |

## About The Diamond Box

The Diamond Box is North London's distinguished destination for luxury watches and gold jewellery since 1997. Visit us at 114 Ballards Lane, N3 2DN, London or call 020 8838 3655.


[View this product on our website](https://jamesrossjewellers.co.uk/product/seiko-bell-matic-automatic-alarm-39mm-stainless-steel-navy-blue-dial-4006-6031-1973-jrw-215)