Style: Art Deco
Case: An early attempt at waterproofing this solid stainless steel 2-piece case locks together using 4 small inset screws on the back of each lug. The crystal flares out underneath the bezel to squeeze onto a rectangular gasket when the back is tightened in place. Signed inside the back, Brev.+ 189190, Eterna Watch Co Swiss, Fab. Suisse, Acier Staybrite. Measures 34mm x 23mm. 16mm strap.
Dial: Rare doctors style original factory printed black dial with gold center seconds chapter and exploding style numbers. Signed Eterna Waterproof, Swiss.
Movement: Very rare form style manual wind center seconds movement signed Eterna Watch Co. 17 Jewels, unadjusted. Recently serviced and in excellent working condition.
A very hard to find early waterproof tank style watch with center seconds and black doctors dial. These watches turned out not to be total successful in terms of waterproofing, but I would say quite an ingenious attempt. This watch does have some slight fading around the edge of the dial, but is in overall excellent condition. I call it a doctor dial because the large center seconds track was used when taking the pulse of a patient. Lots of rare features on this high quality watch from a superb Swiss maker.