Up for sale is my SEIKO Professional Quartz Diver 7549-7010 PYF028 shrouded diver (tuna can). This is the JDM (Japanese domestic market) version of the first professional 300m quartz diver in the world released in 1978.
Production date: October 1980.
Case dimension:
- Width: 47 mm (excludes crown).
- Thickness: 14 mm.
- Lug: 22 mm.
All-original.
Bezel rotates bi-directionally with 60 clicks, firm without play.
Original bezel insert in good condition.
Original dome hardlex is in good condition with faint scratches around the center part.
Case and shroud in good condition. Shroud has swirlies due to normal wear.
Quartz movement is working well. Quick-set day and date are working well. Accuracy is within original factory spec of 1980.
Crown locks in 2.5x full turn.
Service history is unknown.
All new gaskets except for crystal gasket.
Water resistant is unknown.
Complete with brand new JDM flat vent rubber strap SEIKO DAL1BP-22. The original XGL-831 strap and buckle from 1980 are also included.
Price: SOLD.
▲ SEIKO 7549-7010 PYF028 in early 1980s SEIKO catalog.
▲ Comparison of the original XGL 831 strap and buckle (left and middle) with modern DAL1BP 22 (right)
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