1983 Seiko Sports 100 Quartz Chronograph 7A28-7040
1983 Seiko Sports 100 Quartz Chronograph 7A28-7040
1983 Seiko Sports 100 Quartz Chronograph 7A28-7040
1983 Seiko Sports 100 Quartz Chronograph 7A28-7040
1983 Seiko Sports 100 Quartz Chronograph 7A28-7040

1983 Seiko Sports 100 Quartz Chronograph 7A28-7040

Regular price $0.00 Sale

Model: Seiko Sports 100 Quartz Chronograph 'Speedmaster'
Reference: 7A28-7040
Serial Number: 3N1319
Date: November 1983
Box and Papers: No original box or papers. Watch will be supplied with a gift box w/cushion

Case Size: 40mm, 46mm button to button
Fits wrist size: circa 7 inches with all links attached (and on highest clasp adjustment)

Functions: All buttons work and don't stick (new gaskets fitted), chronograph starts and resets to 0
Battery: New 394 battery fitted January 2018
Case Condition: Fantastic, no blemishes/marks.
Bezel: Rotates, bezel insert has a couple of age related marks.
Crystal Condition: No scratches or grazes, all clear and original.
Dial: Dial has a couple of marks but they are hard to see, lume has aged and no longer glows.
Bracelet/clasp: In original condition, structurally sound, matte/satin finish has microscratches.

The 7A28 series was introduced by Seiko in the early 1980s and the technology employed was pioneering at the time. This series was the first quartz chronograph movement produced with an analogue display and has really earnt its place in horological history. Not only is the watch capable of measuring 1/10ths of seconds (watching this is mesmerising!) the tenths hand hits 0 at the exact same moment as the second hand hits each second- a true indication of the time, thought and effort put in by Seiko.

This particular watch is in great condition for its age and all functions operate correctly. The watch has received a deep clean and new gaskets so the buttons do not stick. A new battery was fitted recently.

These Speedmaster variants are becoming increasingly desirable and the price is only going one way. A great everyday piece with great history behind it, this watch is not one to be missed out on!

Viewings by appointment only.