The Sinn 144 GMT from the 1990s exemplifies excellent craftsmanship, a hallmark of reputable German watchmaking, and has garnered a solid following among collectors due to its functional elegance and tritium night glow.

Its rarity, especially in excellent condition with intact luminosity, reflects a distinct appeal in the luxury watch market, particularly within Japan, known for its careful preservation of vintage items.

Wear consistent with age does not detract significantly from its value, especially since it includes original packaging and documentation, enhancing its collectability.

Currently priced at ¥360,000, it sits within the typical range for similar vintage luxury watches, highlighting the buyer's opportunity to acquire an important piece of horological history.