Seiko Stopwatch Crystal – round, highly domed – Ø approx. 41.0 mm – Acrylic – Vintage Stopwatch Crystal – NOS

Original watch glass for a Seiko stopwatch (セイコーストップ / "Seiko Stop[watch]") from unused Japanese new old stock (NOS), from the inventory of an old Tokyo watch parts dealer (中西商店 / Nakanishi Shōten, Tokyo-Shinagawa).

This is a large, round, high-domed glass with a diameter of approx. 41.0 mm – the characteristic format of classic Seiko hand stopwatches. Seiko is one of the most renowned stopwatch manufacturers (official timekeeper of the 1964 Tokyo Olympic Games). The dealer's bag is marked 18型 (Type/Size 18) and 2番 (No. 2).

Offered according to exact measurements. The glass itself is unused, clear, and without scratches; signs of age are only found on the old dealer packaging.

Measurements & References:

• Shape: round, high-domed
• Diameter: approx. 41.0 mm
• Material: Acrylic (Plexi)
• Usage: Seiko stopwatch (セイコーストップ / Stopwatch)
• Origin/Note: Japanese new old stock (中西商店, Tokyo); 18型 / 2番