Skip to product information
1 of 18

1978 Seiko Grand Quartz 9943-8030

1978 Seiko Grand Quartz 9943-8030

Regular price ¥80,000 JPY
Regular price Sale price ¥80,000 JPY
Sale Sold out
Shipping calculated at checkout.

Serviced 1978 Seiko Grand Quartz high end, high accuracy twin quartz in very good condition. 

Disassembled, cleaned and lubricated. 

Flawless, white, sand textured dial, clean and refined. 

Sharp case with couple of small nicks, but in very good condition overall. 

New crystal. 

New Seiko cowhide leather strap. 

New battery and rubber gaskets on the crown, caseback and battery hatch. 

SKU# S1448
Model  9943-8030 
Movement Twin quartz 
Caliber 9943A
Jewels 5
Case Stainless steel 
Case size 35.5mm without the crown x 42mm x 8.8mm
Lugs 19mm 
Dial white sand 
Crystal new mineral crystal 
Bracelet Seiko DAP8 cowhide leather strap 
Serial # 874140 
Service Oct 16, 2025
View full details