Baltic Bicompax 003 — Silver/Blue, Open Back

OUR TAKE The "Chinese movement" grumble shows up under every Baltic listing on Reddit and WatchUSeek. The Sea-Gull ST1901 is the Venus 175. Same architecture, same column wheel, sold to Tianjin in 1961 to power Chinese military chronographs — the calibre that sat inside Universal Genève Compaxes and Eberhard Extra-Forts now going four-to-five figure at Phillips. 36.5mm wears closer to 38 because the lug-to-lug is 46mm. Under 6.75" wrist it's right. Over 7.25" you'll think you're wearing a dress watch. THE SPECS Brand: Baltic Model: Bicompax 003 Reference: BICOMPAX 003 Case diameter: 36.5mm Case material: 316L stainless steel, step case, brushed flanks with polished bezel Dial: Sector dial, silver with blue accents, brushed and grained finishes, azurage sub-dials at 9 and 3 Movement: Sea-Gull ST1901 — hand-wound column-wheel chronograph Power reserve: 42 hours Functions: Hours, minutes, small seconds, 30-minute chronograph Frequency: 21,600 vph Water resistance: 50m Crystal: High-domed hesalite (acrylic) Caseback: Sapphire display back (open back option) Lug width: 20mm Lug-to-lug: 46mm Case thickness: 13mm (10mm without crystal) CONDITION Watch is unmarked; strap shows light wrist creasing. Case: Pristine, no marks Crystal: Pristine Bezel: Pristine Caseback: Pristine, sapphire clean Strap: Original Baltic navy leather, light wrist creases, otherwise clean Buckle: Original signed Baltic stainless steel pin buckle, no marks WHAT'S IN THE BOX Watch on original Baltic navy leather strap Signed Baltic stainless steel pin buckle Original Baltic outer cork sleeve box Original Baltic inner presentation box Missing: Warranty card and papers.