Grade 410, 23 extra quality ruby and sapphire jewels adjusted to 6 positions, manufactured in 1913 to 1927 a total of 4,730 movements in 26 runs make up this grade. Models 3 and 5 open faced; models 4 and 6 hunter; bridge movements of highest quality, double roller, Illinois superior motor barrel and patent micrometric regulator.
Observations, The Illinois Watch Co. and Jason Weiler & Son movements have crosshatch pattern demaskeening, The Lifetime Series have a brushed nickel finish, The Brenner Watch have a fishscale pattern and the Precise are spiral etched with wavy lined center. Models 3 & 4 are Jeweled Barrel, models 5 & 6 are Motor Barrel, most of the pillar plates are marked to show this although not all are marked correctly. Manheimer; Star Watch Case Co. cases were used to convert some hunter models into open faced watches, these may have been factory cased. I have moved the 23 jeweled run of model 3 movements, 3,498,401 - 3,498,500 = 100 from Autocrat grade to this grade.
Variants, The Lifetime Series dial is not recessed into the pillar plate and have a stretched dial is fitted, they require a larger case. Fitted in 14K gold Solidarity cases with "Lifetime Series, R H Macy & Co. Inc." on the cuvette. Precise marked adjusted 'SIX' positions in letters on movement and fitted in 14K gold Solidarity case with Century Precise on cuvette.
Description, 23 extra quality ruby and sapphire jewels; gold settings; adjusted to temperature, 6 positions and isochronism; spring tempered compensating balance, gold screws including timing screws; steel escape wheel; double roller; gold train wheels; Breguet hairspring; patent regulator; safety center pinion; safety recoil click; Illinois superior motor barrel; double sunk dial; is accurately constructed and highly finished in every detail.