Seiko SZZB16 V401-1819 Gold Tone Womens Watch - NEW w/ Box & Manual - Vintage 1987.

This comes with the Manual and original receipt from 2001.

This will need a new battery (information is below).

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This comes from a collector's home that is pet and smoke-free.

The different numbers confused me, so this is the research from Google AI:

The fact that your box says SZZB16 confirms the watch's official retail model name. This perfectly matches the V401-1819 code on the case back, as Seiko uses these two different numbering systems for every watch:

SZZB16 (Retail Reference): Used for catalogs, inventory, and the box.

V401-1819 (Case Code): Stamped on the actual watch to identify the movement (V401) and the specific case design (1819).

Identification of Your SZZB16

Based on the SZZB series, here is the likely configuration of your watch:

Appearance: It is a classic ladies' dress watch. Since the "16" in Seiko's naming often refers to specific trim, it typically features a gold-tone round case with a matching integrated bracelet.

Movement: It uses the ultra-thin Seiko V401 quartz movement, which was a high-quality, reliable Japanese mechanism used in their dressier lines during the late 80s and 90s.

Battery: It requires a 379 (SR521SW) silver oxide battery.