Minerva - 745478 - 1900-1949

Overview
A vintage Minerva mechanical stopwatch (pocket-watch style). The white dial features a clear multi-scale layout: an outer 0–100 “decimal/percentage” scale (often used for industrial or sports timing conversions) and an inner 0–60 seconds track, plus a 30-minute counter at 12 o’clock. The overall design is highly legible, with a strong tool-watch character typical of early mechanical timers and appealing for collectors.
The watch is currently in working order and runs (no long-term accuracy test performed).
Key details
Brand: Minerva
Type: Mechanical stopwatch / pocket stopwatch, manual-wind
Functions: Central stopwatch seconds hand; 30-minute counter (12 o’clock)
Dial: White dial with multi-scale printing (outer 0–100; inner 0–60), signed PATENT / Minerva; IMPORT marking at the bottom (see photos)
Operation: Side pusher (typically start/stop/reset; please refer to the watch and photos for exact operation)
Movement: Mechanical movement, marked MINERVA, with Avance/Retard (fast/slow regulator) markings; movement number visible as 172321 (see photos)
Case / back: Metal case with a blue nameplate reading “WALLIN”, and engraved “F.M.L.” (personalized engraving/marking, see photos)
Inner cover / number: Inner cover shows number 745478 (see photos)
Measurements & weight (per photos)
Diameter (excluding crown/bow): approx. 51.37 mm
Total length (including crown/bow): approx. 70.66 mm
Weight: approx. 96.27 g
Condition
Dial: Clear and easy to read; shows normal age-related wear (please see photos).
Crystal: Intact; normal reflections and minor signs of use (see photos).
Case: Noticeable patina and wear consistent with age; edge wear/oxidation visible. Back nameplate and engravings remain legible.
Movement / running: Runs and functions normally after testing; service history unknown; not tested for long-term accuracy.
Photos form an important part of the description and may show details more clearly than text. Please review all images carefully and assess the item accordingly.