Pulsar quartz wristwatch (model 5500730, case number Y742-5090, stainless steel back, water-resistant), a sterling silver ring marked "925" with Greek key design, a sterling silver ring marked "925 SS" with ornate filigree setting and open center (diamond tester used, presumed no gemstone), and a vintage metal U.S. Coast Guard button.
The Pulsar watch shows visible wear and scratches on the dial and case. Both rings are clearly hallmarked for sterling content, and approximate weights are 4.1g (Greek key ring) and 3.0g (filigree ring).
See photos for measurements, if taken. All items are pre-owned with wear consistent with age and use.