Roamer Rotopower Incabloc 21 Jewels
Vintage Dress Watch / Automatic Subcategory · Roamer (MST - Mayer & Stüdeli), classified as a mid-range historic Swiss manufacturer known for robust waterproof cases and in-house calibers.
Period: Mid-Century (1950s-1960s) with classic vintage indicators such as slender applied hour markers, dauphine hands, and a champagne-toned aged dial layout.

Type
Vintage Dress Watch / Automatic Subcategory
Brand
Roamer (MST - Mayer & Stüdeli), classified as a mid-range historic Swiss manufacturer known for robust waterproof cases and in-house calibers.
Movement
Automatic / self-winding mechanical movement signed Roamer Rotopower, featuring 21 jewels and an Incabloc shock protection system operating at a traditional vintage frequency.
Dimensions
Case diameter: 34 mm, Case thickness: 11 mm, Lug-to-lug distance: 41 mm, Lug width: 18 mm. Wears true to vintage mid-century proportions, slightly smaller than modern standards.
Description
A charming and authentic mid-century vintage dress watch from Roamer, featuring the signature Rotopower automatic movement. The timepiece showcases a beautifully aged champagne dial with warm patina, accented by applied gold hour markers and dauphine hands. Housed in a yellow gold-plated case, it represents the classic post-war era of Swiss watchmaking where reliability and elegance merged into everyday wear.
Key Features
Rotopower automatic winding designation, 21-jewel Swiss movement, Incabloc shock resistance, and classic mid-century minimalist dial design.
Dial Description
Champagne-colored dial with visible age patina and spotting, applied gold-tone baton indices, double marker at the 12 o'clock position, dark dauphine hands, central sweep seconds hand, and printed text reading Roamer Rotopower, Incabloc, 21 Jewels, and Swiss Made.
Case Material
Gold-plated base metal or yellow gold-filled case with a polished finish, showing wear through to the underlying metal at high-friction edges.
Crystal Type
Domed acrylic (plexiglass) crystal with visible surface scuffs, scratches, and light crazing consistent with age.
Bezel Details
Fixed integrated smooth round bezel in matching gold-tone finish.
Crown & Pushers
Standard unsigned push-pull crown located at the 3 o'clock position, appropriately sized for easy winding and setting.
Bracelet or Strap
Vintage gold-tone expansion bracelet (such as Speidel style) featuring expandable links that show considerable plating loss and wear.
Caseback Details
Solid screw-down metal case back, likely stainless steel, featuring vintage factory engravings and hallmarks.
Movement Type
Automatic / self-winding mechanical movement signed Roamer Rotopower, featuring 21 jewels and an Incabloc shock protection system operating at a traditional vintage frequency.
Water Resistance
Not water resistant. Historical vintage rating likely negligible or splash resistant when new, but lacking modern gaskets or screw-down integrity.
Origin & Provenance
Swiss Made, manufactured in Solothurn, Switzerland, utilizing Roamer's proprietary automatic movement architecture.
Age Estimate
Circa 1950s-1960s based on the typography, Rotopower automatic branding, and case construction.
Cultural Significance
Represents the accessible everyday luxury of post-WWII Switzerland, highlighting how robust automatic movements democratized reliable timekeeping for the mid-century workforce.
Condition Notes
Fair to Good vintage condition. The case shows noticeable brassing and plating loss on the sharp edges and lugs. The dial has developed an even, authentic patina with minor spotting. The acrylic crystal has surface scratches that can be polished out. The expansion bracelet shows significant wear and plating fatigue.
Value Estimate
Estimated secondary market value ranges between $100 to $300 USD, heavily dependent on the mechanical health of the movement, cosmetic condition of the dial, and completeness of the original parts.
Care & Maintenance
Requires gentle handling due to age. Avoid water exposure completely given the vintage seals and worn plating. Recommended professional service every 5 to 7 years to clean and lubricate the vintage mechanical movement.
Similar Watches
Vintage Tissot Visodate, Omega Seamaster automatic, Certina Waterking, and vintage Enicar automatic dress watches from the same era.
Interesting Facts
Roamer was originally founded in Solothurn, Switzerland in 1888 by Fritz Meyer as a watch escapement maker, eventually evolving into a fully integrated manufacturer producing their own robust movements under the Mayer & Stüdeli (MST) banner.