Bulova 1971 Longchamp

Bulova Longchamp Ellipse “Lapislazzuli” / lapis lazuli dial, likely early 1970s.

What I found online:

• A matching listing identifies it as Bulova Longchamp Ellipse Lapislazzuli, reference 489990, 1970–1979, with a 30 × 41 mm ellipse case and manual-wind movement. 
• One auction/listing claims it was produced in about 25 pieces worldwide, but I’d treat that as seller-claimed, not proven factory documentation. 
• Another current/archived dealer listing had one priced around €1,399, described as new old stock with box/papers. 
• Your photo matches the key traits: Bulova, Longchamp, blue stone-like dial, ellipse/oval case, Swiss marking, and mesh bracelet.

My mom purchased as a Father's Day gift in 1971. I was born in Feb of that year and I was their first. Location of purchase was in Prince George, British Columbia, Canada. I remember him wearing it as a kid and I thought I’d ask my parents about this watch. Mom goes upstairs and comes down with it along with some other cool vintage watches. Such a cool color dial.