Vintage Olma Automatic 25 Rubis Incabloc Wristwatch with Linen Dial and Date
Olma (Numa Jeannin S.A.) · Jewelry & Watches > Wristwatches
Era / Decade
Early 1970s (based on the tonneau/cushion case shape and tritium markings)
Material
Stainless steel case and bracelet, acrylic crystal; Swiss automatic movement (likely ETA or AS base) with 25 jewels.
Condition
Good to Very Good (Vintage). The dial is exceptionally clean, but the acrylic crystal shows minor surface scratching and the case has light age-related scuffing. No major pitting visible.
Demand Level
Moderate/Niche. Strong interest among vintage watch collectors who appreciate 'under-the-radar' Swiss brands and 70s aesthetics.
Resale Value
Estimated Resale Value
$125.00 - $275.00
Estimated Retail Value
$400.00 - $600.00 (comparable modern Swiss automatic mid-tier watches today)
Comparable Sales
Recent eBay sales for Olma automatics in good condition range from $110 to $250. Models with textured dials (like this linen version) typically command a 20-30% premium over plain dials.
Description
A stunning 1970s Olma Swiss-made automatic watch featuring a rare and desirable silvery 'linen' textured dial. Housed in a stainless steel tonneau-shaped cushion case, this timepiece features 25 rubies and Incabloc shock protection. Includes a date window at 3 o'clock with red numerals. Marked 'T Swiss Made T' indicating the use of tritium for luminosity. Paired with a period-correct stainless steel link bracelet.
Key Features
Mechanical automatic movement (no battery needed), sought-after linen texture dial, Swiss manufacturing, Incabloc shock protection, and 1970s retro-futurist case design.
Authenticity Indicators
High confidence. Correct 'T' markings for the era, crisp dial printing, high-quality applied indices, and weight consistent with a Swiss automatic movement. Olma is a known mid-tier Swiss brand primarily for the European and Asian markets.
Flaws to Note
Micro-scratches on the acrylic crystal (can be polished out with Polywatch); unknown service history; light wear on the bracelet links. Lume on hands likely faded or non-functional due to age.
Selling Guide
Where to Sell
Chrono24 (specialized watch market), eBay (widest reach for vintage watches), or specialized watch forums (Watchuseek).
Selling Tips
Always include a photo of the movement (case back removed) if possible to prove authenticity and condition. Use keywords like 'Linen Dial', 'Tonneau Case', 'Swiss Automatic', and 'Vintage Divers Style'. Highlight that it is a mechanical watch and mention if it is currently holding time.