Alto Art Deco Style Sterling Silver, Marcassite, and Onyx Quartz Ladies Watch
Jewelry (Watch) · Alto is a contemporary brand specializing in affordable luxury timepieces, often utilizing vintage-inspired aesthetics and sterling silver components. Their work is typically manufactured in Southeast Asia (Thailand or Hong Kong).
Pattern: Art Deco Revival (Diamond & Fan Pattern). This is a production-line model that draws inspiration from 1920s architecture and jewelry motifs.

Type
Jewelry (Watch)
Maker
Alto is a contemporary brand specializing in affordable luxury timepieces, often utilizing vintage-inspired aesthetics and sterling silver components. Their work is typically manufactured in Southeast Asia (Thailand or Hong Kong).
Material
Sterling Silver (.925) case and band, accented with iron pyrite (marcasite) stones and black onyx inlays. The watch movement is quartz; the case back is likely stainless steel.
Dimensions
Standard ladies' cocktail size. Watch face diameter approximately 15-20mm; total weight including movement approximately 25-35 grams.
Description
This elegant ladies' timepiece by Alto captures the glamour of the Gatsby era. Crafted in sterling silver, the watch features a tonneau-shaped face surrounded by glittering marcasites. The band is meticulously decorated with geometric onyx inlays and further marcasite pavé, creating a high-contrast monochromatic look typical of the Art Deco aesthetic.
Key Features
High-contrast onyx inlays, dense marcasite pavé, 'Alto' branded dial, and sterling silver construction (rare for modern fashion quartz watches).
Material & Composition
Sterling Silver (.925) case and band, accented with iron pyrite (marcasite) stones and black onyx inlays. The watch movement is quartz; the case back is likely stainless steel.
Finish & Decoration
Oxidized (antiqued) finish to highlight the marcasite settings. Features include bead-set marcasites, geometric black onyx inlays in diamond shapes, and fan-shaped shoulders adjacent to the watch face.
Hallmarks & Stamps
Usually stamped '925' or 'Sterling' on the back of the watch case or the clasp. The dial is marked 'ALTO' and 'QUARTZ' with 'Japan Movt' likely at the bottom.
Construction Details
Cast sterling silver links with hand-set or epoxy-set marcasites. The watch uses a battery-operated quartz movement with a snap-down or screw-down case back.
Functional Features
Standard time-keeping function, analog display, fold-over jewelry clasp, and a crown at the 3 o'clock position for time adjustment.
Handle & Grip Details
Articulated sterling silver bracelet band designed for comfort and elegance. The clasp is a traditional jewelry-style snap lock common for cocktail watches.
Craftsmanship Details
High-quality casting with careful attention to the alignment of the marquise and diamond-shaped inlays. The uniform setting of the stones indicates professional production-line craftsmanship.
Authentication Indicators
The presence of the '925' mark on the jewelry components, the weight of the silver, and the specific 'Alto' logo typeface consistent with contemporary fashion watches.
Origin & Manufacturing
Likely manufactured in Thailand, which is a global hub for sterling silver marcasite jewelry production, or Hong Kong. The movement is Japanese (Quartz).
Era & Period
Late 20th Century to early 21st Century Art Deco Revival. While the style is 1920s, the quartz movement and construction identify it as a modern reproduction.
Age Estimate
Circa 1990–2010. This is based on the 'Alto' branding and the popularity of Art Deco revival watches during the late 90s.
Cultural Significance
Represents the enduring appeal of the Art Deco movement's geometry and the transition of the watch from a practical tool to a piece of evening jewelry.
Condition Notes
Very Good. The marcasites appear intact; light oxidation is present on the silver, which is intentional to provide depth. Minor surface scratches on the case back and crystal.
Value Estimate
$75.00 - $150.00 USD. Value is based on the silver content and jewelry appeal rather than horological rarity.
Care & Maintenance
Clean with a dry, soft silver polishing cloth. Avoid liquid silver dips as they can dissolve the cement holding the marcasites and onyx. Keep away from water.
Similar Pieces
Judith Jack sterling marcasite watches or vintage 1920s platinum/diamond watches (which this piece mimics). Differences include movement type and metal purity.
Interesting Facts
Marcasite jewelry became popular in the 18th century as a diamond alternative and resurged in the 1920s; modern pieces like this keep that tradition alive for affordable formal wear.