Grand Seiko 44GS (also King Seiko 44-9990, King Seiko 4420-9990 and Liner 46999) sapphire display case back
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Description
GRAND SEIKO 44GS (ALSO KING SEIKO 44-9990, KING SEIKO 4420-9990 AND 46999 LINER) SAPPHIRE DISPLAY CASE BACK
- 316L marine grade stainless steel
- 1 mm thick sapphire crystal glued with SEIKO S-314 UV adhesive
- Flat rubber gasket pre-lubricated with SEIKO S-916 silicone grease