Seiko 6602-8040 Manual Wind Date Sunburst Dial

This vintage Seiko Ref. 6602-8040 showcases a timeless design with its striking silver sunburst dial that beautifully catches the light. Housed in a distinctively cushion shaped stainless steel case with sharp, clean lines, the watch features applied polished baton markers and dauphine hands, both accented with black center lines for excellent contrast and legibility. A neatly framed date window is positioned at 3 o’clock, balanced by the applied Seiko logo at 12. The dial is marked “Water Proof 17 Jewels”. This piece combines classic Japanese watchmaking precision with an elegant and versatile aesthetic that has endured for decades.

General

Brand

reference

6602-8040

Manufactured

Switzerland

Department

Men

Dial Color

Silver

Case

Case Shape

Cushion

Bezel

Fixed

Case Material

Stainless Steel

Case Width

36mm

Case Height

43mm

Strap / Bracelet

Lug Width

18mm

Strap Material

Suede

Strap Color

Blue

Clasp

Buckle

Max Wrist Size

8.5"

Movement

Movement

Manual Wind

Caliber

Seiko 6602

Accuracy

>20 seconds

The movement showed a daily accuracy deviation ranging from 0 to 20 seconds across six positions.

Extras

Warranty Every watch sold by Ottuhr comes with a 1-year mechanical warranty. Select pieces may also include additional guarantees or extended coverage.

1-Year Ottuhr Warranty

Original Box

No

Original Papers

No

Overview

For those in the know, vintage Seiko represents one of the single greatest value propositions in watch collecting, period. While the Swiss giants often dominate the conversation, Seiko was, and is, a true in-house manufacture of the highest order, responsible for some of the most innovative and beautifully designed watches of the 20th century. This fantastic manual-winding dress watch is a perfect case in point.

The 1960s were a golden age for Seiko, a decade where the company truly came into its own on the world stage. This was the era of Taro Tanaka’s now-legendary “Grammar of Design,” a set of aesthetic principles that emphasized sharp lines, flat, highly polished surfaces, and supreme legibility. This philosophy transformed Seiko’s watches into objects of distinct and beautiful Japanese design. Powering these handsome machines were robust, workhorse calibers like the manual-winding Cal. 6602 found in this piece—unfussy, incredibly durable movements that cemented Seiko’s reputation for bulletproof reliability.

This particular reference, a 6602-8040 dating precisely to April of 1968, is a stunningly preserved example of that design ethos. The first thing that strikes you is the fantastic stainless steel “C-case.” With its flowing, tonneau-like shape and sharp, flat planes, it’s a masterclass in the “Grammar of Design,” wearing beautifully and comfortably on the wrist. The gorgeous silver sunburst dial is in exceptional condition, radiating from the center and creating a wonderful play of light. This clean backdrop is the perfect stage for the razor-sharp, applied baton indices and classic dauphine handset. True Seiko aficionados will also appreciate the small “lightning bolt” logo above the 6 o’clock, the proud mark of the Daini Seikosha factory where this watch was born.

This piece is a true time capsule. The case appears to be unpolished, retaining its original sharp lines and factory finishes. The sunburst dial is incredibly clean and bright, and the hands and markers are free of any corrosion. The original “PROOF” marked caseback is still present, a detail that further authenticates its pre-1970 production. It is, quite simply, a stunning survivor.

Timing: The watch has been measured with a timegrapher at six different positions. The rate, amplitude, and beat error are within acceptable ranges.

Functions: All functions including the crown winding, time setting, etc are working as expected.

Integrity: The movement shows no signs of damage, rust, or corrosion, with all components appearing clean and well-maintained.

Authenticity: Each timepiece is evaluated and authenticated in-house. This watch is guaranteed to be correct to its manufacturer and time period.

Warranty: This timepiece includes a 1-year mechanical warranty, activated upon the date of purchase. 

Shipping: This timepeice includes complimentary insured shipping within all 50 states. 

Returns: If, for any reason, you are not entirely satisfied with your purchase, you may return the product for a full refund within 30 days from the date you received or signed for the item.

More Watches